Showing posts with label Mobile search. Show all posts
Showing posts with label Mobile search. Show all posts

Friday, December 31

Handsfree

Hands-free mobile phone kit fitted to a Saab 9-5,..
Handsfree is an adjective describing equipment that can be used without the use of hands (for example via voice commands) or, in a wider sense, equipment which needs only limited use of hands, or for which the controls are positioned so that the hands are able to occupy themselves with another task (such as driving) without needing to hunt far afield for the controls.
Devices that are typically used for handsfree communication use Bluetooth as its wireless technology. They still require a mobile phone or other device to initiate a call. These devices include Bluetooth headsets, hands-free car kits (HFCK), and personal navigation devices (PND). Originally introduced as optional features connected by a wire to mobile phones or other communication devices, they now generally are available with wireless technology.
Bluetooth handsfree options are now also easily found in any high end automotive as part of the vehicle's stereo system, or in after market stereo system units. This option utilizes the vehicle's speakers to transmit the caller's voice in the phone call and have an embedded microphone in the stereo unit itself, the steering wheel, or use a separate wired microphone that can be placed anywhere in the vehicle.


Mobile phones

Handsfree mobile phones are obligatory in many countries for use of a mobile phone while driving. However, studies have shown that even with a hands-free unit, the added distraction to the driver, and the increase in accident rates, are almost as substantial as when driving and talking on a normal mobile phone.[1]
In the United Kingdom, as of 2003, it is illegal to use a handheld mobile phone while driving.[2] Similar laws have been adopted in many jurisdictions worldwide, and many make provisions for hands-free phone use.
Installation of Hands Free devices in the UK is governed by MPT 1362, which is now referred to as FCS 1362. A technical document created and updated by the Federation of Communication Services.
In the USA, several states have banned talking on a hand-held cellphone while driving.

[edit]Software Technologies

Since handsfree devices replace a phone's own speaker and microphone capability in a phone call, they now also must deal with the same issues that standard mobile phones and land phones deal with. The main acoustic issues are echo cancellation and noise suppression, although there are others as well. There have been many ways developed to cancel echo in phone calls and results range from poor to excellent.
These acoustic technologies must also remove or reduce the noise levels so that the caller is well understood. A person making a call from a handsfree device who is in a busy restaurant or while driving will introduce large levels of noise into the call. This situation is complicated as the software must not only remove the noise around him, but must transmit his voice clearly and loudly to whoever is connected to him.
The best software solutions combine both echo cancellation and noise cancellation into a single technology so that the caller has the freedom to use a handsfree device anywhere they please. Having an acoustic solution with only one feature will dramatically reduce its flexibility.


(source:wikipedia)

Thursday, December 2

Mobile broadband

Mobile broadband (strictly speaking Mobile Internet as the QOS doesn't meet international Broadband definitions) is the name used to describe various types of wireless high-speed internet access through a portable modem, telephone or other device. Various network standards may be used, such as GPRS, 3G, WiMAX, LTE, Flash-OFDMA, IPW, iBurst UMTS/HSPA, EV-DO and some portable satellite-based systems. However mostly the term refers to EVDO (sister system to CDMA-1), EDGE on GSM and HSPDA/HSUPA/HSPA on UMTS/3G/Foma. Such systems piggyback on the mobile phone infrastructure (EDGE, HSPA etc actually share spectrum with voice calls, which have priority). Thus the phrase "Mobile Broadband" is largely a wireless carrier marketing tool. The actual "non-Mobile Phone" Mobile networks are very small subscriber base (Mobile WiMax, iBurst, Flash-OFDMA, IPW and portable Satellite terminals) compared to Fixed Wireless Broadband. A misleading vendor tactic is to quote the peak speed as the user speed. This is like quoting exchange total speed for DSL or total cable bandwidth for Cable users. It has little resemblance to real world performance (see ).
North America refers to Mobile Phone networks as Cellular Networks. However all non-Satellite Mobile Internet are cellular designs, but only CDMA-1 (EVDO related), GSM (GPRS/EDGE), UMTS/WCDMA/3G/FOMA/T-CDMA (HSPDA, HSUPA, HSPA, HSPA+) are Mobile Phone Networks. LTE and Mobile WiMax are Data only, using VOIP for voice. Flash-OFDMA, IPW (derived from CDMA) and iBurst are also Data only networks. In theory also you could have an ERAN based EDGE2 network with no GPRS or GSM Voice, but no-one is likely to deploy it. Voice and SMS pays for the Mobile Phone networks. In the long term any decent speed LTE or Mobile WiMax is likely to be very much more expensive per Gigabyte traffic than fixed Broadband or Fixed Wireless Broadband.
Devices that provide mobile broadband include: PC cards also known as PC data card or Connect cards, USB modems, USB sticks often called "dongles", phones with data modems and portable devices with built-in support for Mobile Broadband (like notebooks, netbooks and Mobile Internet Devices (MIDs)). Notebooks with built-in Mobile Broadband Modules are offered by all leading laptop manufacturers in Europe and Asia including: Asus, Dell, Lenovo (previously IBM), HP, Fujitsu, Toshiba, Micro-Star International and Acer.
A group of telecommunication manufacturers, mobile phone producers, chipset manufacturers and notebook manufacturers have joined forces to push built-in support for Mobile Broadband technology on notebook computers. The players have established a service mark to identify devices that deliver Mobile Broadband.
Some Comparisons between Dialup (narrowband), Mobile (Midband) and true always on Broadband:  linking to OECD, FCC and Irish Government Definitions. Explanation as to why Mobile performance is often 1/10th of the Advertised speed, drops connections and may not connect  at all.

Development

T-Mobile Universal Mobile Telecommunications System PC Card modem


A mobile phone can be used as a wireless modem


Huawei CDMA2000 Evolution-Data Optimized USB wireless modem model E226
On 11 December 2002, the IEEE Standards Board approved the establishment of IEEE 802.20, the Mobile Broadband Wireless Access (MBWA) Working Group.
The mission of IEEE 802.20 is to develop the specification for an efficient packet based air interface that is optimized for the transport of IP based services. The goal is to enable worldwide deployment of affordable, ubiquitous, always-on and interoperable multi-vendor mobile broadband wireless access networks that meet the needs of business and residential end user markets.
The main barrier to the take up of mobile broadband will be the coverage the mobile phone networks can provide, in many areas customers will not be able to achieve the speeds advertised due to mobile data coverage limitations. In addition, there are also issues with connectivity, network capacity, application quality, and mobile network operators' overall inexperience with data traffic.
Demand from emerging markets fuels a large share of growth in Mobile Broadband over the coming years. Without the need to start from the basis of a widespread fixed line infrastructure, many emerging markets leapfrog developed markets and use Mobile Broadband technologies to deliver high-speed internet access to the mass market.
The global Third Generation Partnership Project (3GPP) family of standards - which includes GSM, EDGE, WCDMA, HSPA and LTE – is the most widespread way to deliver mobile broadband. 3GPP standards are serving about 90 percent of the world’s mobile subscribers.

Ireland

In 2009 3 Ireland (part of Hutchison Whampoa) started an add on roll out of their 3G/HSPA Mobile Phone service Marketed as Broadband and with the contract to supply the NBS. This is widely regarded as a catastrophe for prospective Broadband users see 

United Kingdom

In October 2008, a steering group known as Digital Britain was set up, with the aim of promoting digital telecommunications in the United Kingdom. The conclusion of the steering group was a recommendation that the government took up, namely to have 100% broadband coverage, with a minimum speed of 2Mbps in the United Kingdom by the year 2012. Mobile "broadband" using 3G is not now expected to be able to ensure 2Mbps broadband coverage to the more remote areas of the UK as coverage is too poor and contention too high. Another suggestion is Ka Satellite for Rural areas, which may be very cheap by the end of 2010 if Eutelsat's KA-SAT is successfully launched. There is also a smaller Ka Sat due in 2010 from Avanti. However Satellite latency is about 790ms.

Types of devices used

PDA
smartphone, Mobile phone
USB flash drive, (dongle)
Compact Flash
PC Card, ExpressCard
SDIO
MiFi

Service providers

There are competing common carriers broadcasting signal in most nations of the earth. Some of these Cellular networks and the carrier's service plans are:

North America
Canada providers
List of Canadian mobile phone companies
United States providers
T-Mobile USA
AT&T Mobility
Verizon Wireless
Sprint Nextel
Cricket Communications
Virgin Mobile
ReadyBroadband
Clearwire provides wireless internet but not mobile phone service
Mexico providers
Telcel
Iusacell

Europe
Belgian providers:
ClearWire
Czech
Telefonica O2
T-Mobile
U:fon
Vodafone
Danish providers:
TDC
Telia
Telenor
3
Clearwire
Finnish providers:
DNA Oy
Elisa Oyj
Saunalahti
Sonera
Vodafone
German providers
T-mobile
Vodafone
E-Plus
O2 plc
Ireland providers
O2_(Ireland)
Vodafone_Ireland
3 (telecommunications)
Meteor_(mobile_network)
Portuguese providers
TMN
Vodafone
Optimus
Meo, Sapo, ZON as MVNOs using the above main networks as carriers.
Zapp (portuguese branch)
Spanish providers:
Movistar
Vodafone
Orange (brand)
Yoigo
Swedish providers:
3 (telecommunications)
ice.net
Telenor
Tele2Comviq
Telia
United Kingdom providers
T-mobile
Vodafone
O2 plc
Orange SA
3 (telecommunications)
United Kingdom Ofcom accredited impartial comparison service for broadband
Simplifydigital

Asia
Korea providers
KT
SKT
LGT
Pakistan providers
Ufone
PTCL
Wateen
Warid
Mobilink GSM
Zong
WorldCall Online
Japanese providers:
NTT docomo
au (mobile phone operator)
SoftBank Mobile
EMOBILE Limited
Willcom
Indian providers:
MTNL
BSNL
VSNL
Airtel
Aircel
Vodafone Essar
Tata Indicom
Reliance Mobile
Virgin Mobile India
Indonesian providers
Indosat
XL
Telkomsel
Axis
3
Israeli providers
Cellcom
Orange Israel
Pelephone
P.R.China providers
China Mobile(CMCC)
China Unicom
China Telecom
Filipino providers:
Globe Tattoo(Globe Telecom)
Smart Bro(Smart Communications/PLDT)
Sun Broadband Wireless(SBW)(Sun Cellular/Digitel)
Malaysia providers
Celcom
DiGi Telecommunications
Maxis Communications
Singapore providers
SingTel
StarHub
M1
Sri Lanka Providers
Dialog Telecom
Mobitel
Airtel

Oceania
Australia providers
Telstra
Optus
3 Mobile
Virgin Mobile
Vodafone
New Zealand providers
Telecom Xtra
Vodafone

Device manufacturers

ZTE Corporation
Danger
Freewave Technologies
HTC (includes Qtek and Dopod)
Hewlett Packard (HP)
Huawei
LG Electronics
Motorola
Nokia
Novatel Wireless
Onda Communication
Option N.V.
Panasonic
RIM (BlackBerry)
Samsung
Sierra Wireless
Sony Ericsson
Telit
Tekelec
Qualcomm

Technologies

GPRS (2.5G)
CDPD
CDMA2000
EDGE
UMTS (3G)
GPRS Core Network
IP Multimedia Subsystem
HSDPA (3.5G)
iBurst (pre-4G)
HiperMAN (pre-4G)
WiMAX (pre-4G)
WiBro (pre-4G)
GAN (UMA) (pre-4G)

(source:wikipedia)

Mobile device

A mobile handheld device.
A mobile device (also known as a handheld device, handheld computer or simply handheld) is a pocket-sized computing device, typically having a display screen with touch input and/or a miniature keyboard. In the case of the personal digital assistant (PDA) the input and output are often combined into a touch-screen interface. Smartphones and PDAs are popular amongst those who require the assistance and convenience of certain aspects of a conventional computer, in environments where carrying one would not be practical. Enterprise digital assistants can further extend the available functionality for the business user by offering integrated data capture devices like barcode, RFID and smart card readers.

Types

Mobile devices have been designed for many applications and include:
Mobile computers
Mobile internet device
Mobile internet
Personal digital assistant/enterprise digital assistant
Calculator
Handheld game console
Portable media player
Digital still camera (DSC)
Digital video camera (DVC or digital camcorder)
Mobile phone
Pager
Personal navigation device (PND)

Usage

Handheld devices have become ruggedized for use in mobile field management situations to record information in the field. They are used to achieve a variety of tasks for increasing efficiency that include digitizing notes, sending and receiving invoices, asset management, recording signatures, managing parts and scanning barcodes. Handheld computers used at work have molded over time into a variety of form factors, including smartphones on the low end, handheld PDAs, Ultra-Mobile PCs and Tablet PCs. Laptops do not come under handheld computers as they are not small enough to hold in one's hand.


(source:wikipedia)

Wednesday, December 1

Multimedia Messaging Service

A multimedia message on a mobile phone,.
Multimedia Messaging Service, or MMS, is a standard way to send messages that include multimedia content to and from mobile phones. It extends the core SMS (Short Message Service) capability that allowed exchange of text messages only up to 160 characters in length.
The most popular use is to send photographs from camera-equipped handsets, although it is also popular as a method of delivering news and entertainment content including videos, pictures, text pages and ringtones.
The standard is developed by the Open Mobile Alliance (OMA), although during development it was part of the 3GPP and WAP groups.

History

The immediate predecessor to the MMS is the Japanese picture messaging system Sha-Mail introduced by J-Phone in 2001. It validated the concept of camera phone users willing to send picture messages from one phone to another.
Early MMS deployments were plagued by technical issues and frequent consumer disappointments, such as having sent an MMS message, receiving a confirmation it had been sent, being billed for the MMS message, to find that it had not been delivered to the intended recipient. Pictures would often arrive in the wrong formats, and other media elements might be removed such as a video clip arriving without its sound.
At the MMS World Congress in 2004 in Vienna, all European mobile operator representatives who had launched MMS, admitted their MMS services were not making money for their networks. Also on all networks at the time, the most common uses were various adult oriented services that had been deployed using MMS.
China was one of the early markets to make MMS a major commercial success partly as the penetration rate of personal computers was modest but MMS-capable cameraphones spread rapidly. The chairman and CEO of China Mobile said at the GSM Association Mobile Asia Congress in 2009 that MMS in China is now a mature service on par with SMS text messaging.
Europe's most advanced MMS market has been Norway and in 2008 the Norwegian MMS usage level had passed 84% of all mobile phone subscribers. Norwegian mobile subscribers average one MMS sent per week.
By 2008 worldwide MMS usage level had passed 1.3 billion active users who generated 50 billion MMS messages and produced annual revenues of 26 billion dollars.

Technical description

MMS messages are delivered in a completely different way from SMS. The first step is for the sending device to encode the multimedia content in a fashion similar to sending a MIME e-mail (MIME content formats are defined in the MMS Message Encapsulation specification). The message is then forwarded to the carrier's MMS store and forward server, known as the MMSC. If the receiver is on another carrier, the relay forwards the message to the recipient's carrier using the Internet.
Once the MMSC has received a message, it first determines whether the receiver's handset is "MMS capable", that is it supports the standards for receiving MMS. If so, the content is extracted and sent to a temporary storage server with an HTTP front-end. An SMS "control message" containing the URL of the content is then sent to the recipient's handset to trigger the receiver's WAP browser to open and receive the content from the embedded URL. Several other messages are exchanged to indicate status of the delivery attempt. Before delivering content, some MMSCs also include a conversion service that will attempt to modify the multimedia content into a format suitable for the receiver. This is known as "content adaptation".
If the receiver's handset is not MMS capable, the message is usually delivered to a web based service from where the content can be viewed from a normal internet browser. The URL for the content is usually sent to the receiver's phone in a normal text message. This behaviour is usually known as the "legacy experience" since content can still be received by a phone number, even if the phone itself does not support MMS.
The method for determining whether a handset is MMS capable is not specified by the standards. A database is usually maintained by the operator, and in it each mobile phone number is marked as being associated with a legacy handset or not. It can be a bit hit and miss since customers can change their handset at will and this database is not usually updated dynamically.
E-mail and web-based gateways to the MMS (and SMS) system are common. On the reception side, the content servers can typically receive service requests both from WAP and normal HTTP browsers, so delivery via the web is simple. For sending from external sources to handsets, most carriers allow MIME encoded message to be sent to the receiver's phone number with a special domain. An example of this would be PTN@messaging.carrier.com, where PTN is the public telephone number. Typically the special domain name is carrier specific.

Challenges

There are some interesting challenges with MMS that do not exist with SMS:


Handset configuration can cause problems sending and receiving MMS messages.
Content adaptation: Multimedia content created by one brand of MMS phone may not be entirely compatible with the capabilities of the recipient's MMS phone. In the MMS architecture, the recipient MMSC is responsible for providing for content adaptation (e.g., image resizing, audio codec transcoding, etc.), if this feature is enabled by the mobile network operator. When content adaptation is supported by a network operator, its MMS subscribers enjoy compatibility with a larger network of MMS users than would otherwise be available.
Distribution lists: Current MMS specifications do not include distribution lists nor methods by which large numbers of recipients can be conveniently addressed, particularly by content providers, called Value-added service providers (VASPs) in 3GPP. Since most SMSC vendors have adopted FTP as an ad-hoc method by which large distribution lists are transferred to the SMSC prior to being used in a bulk-messaging SMS submission, it is expected that MMSC vendors will also adopt FTP.
Bulk messaging: The flow of peer-to-peer MMS messaging involves several over-the-air transactions that become inefficient when MMS is used to send messages to large numbers of subscribers, as is typically the case for VASPs. For example, when one MMS message is submitted to a very large number of recipients, it is possible to receive a delivery report and read-reply report for each and every recipient. Future MMS specification work is likely to optimize and reduce the transactional overhead for the bulk-messaging case.
Handset Configuration: Unlike SMS, MMS requires a number of handset parameters to be set. Poor handset configuration is often blamed as the first point of failure for many users. Service settings are sometimes preconfigured on the handset, but mobile operators are now looking at new device management technologies as a means of delivering the necessary settings for data services (MMS, WAP, etc.) via over-the-air programming (OTA).
WAP Push: Few mobile network operators offer direct connectivity to their MMSCs for content providers. This has resulted in many content providers using WAP push as the only method available to deliver 'rich content' to mobile handsets. WAP push enables 'rich content' to be delivered to a handset by specifying the URL (via binary SMS) of a pre-compiled MMS, hosted on a content provider's web server. A consequence is that the receiver who pays WAP per kb or minute (as opposed to a flat monthly fee) pays for receiving the MMS, as opposed to only paying for sending one, and also paying a different rate.
Although the standard does not specify a maximum size for a message, 300 kB is the current recommended size used by networks due to some limitations on the WAP gateway side.

Interfaces

Main article: MMS Architecture


MMSC Reference Architecture
MM1: the 3GPP interface between MMS User Agent and MMS Center
MM2: the 3GPP interface between MMS Relay and MMS Server
MM3: the 3GPP interface between MMS Center and external servers
MM4: the 3GPP interface between MMS Centers
MM5: the 3GPP interface between MMS Center and HLR
MM6: the 3GPP interface between MMS Center and user databases
MM7: the 3GPP interface between MMS VAS applications and MMS Center
MM8: the 3GPP interface between MMS Center and the billing systems
MM9: the 3GPP interface between MMS Center and an online charging system
MM10: the 3GPP interface between MMS Center and a message service control function
MM11: the 3GPP interface between MMS Center and an external transcoder

See also

Short code


(source:wikpedia)

Mobile Web

The Mobile Web refers to the use of Internet-connected applications, or browser-based access to the Internet from a mobile device - such as a smartphone or tablet PC - connected to a wireless network.
Traditionally, access to the Web has been via fixed-line services. However the Web is going mobile. In 2008 an important milestone in the transition from fixed to mobile Web use was reached when mobile access to the Internet exceeded desktop computer-based access for the first time (source: International Telecommunications Union, Oct 2009). In fact, the shift to mobile Web access has been accelerating since 2007 with the rise of larger form factor multitouch smartphones, and more recently since 2010 with the emergence of multitouch tablet computers. Both platforms are more conducive to Internet access and better browser- or application-based user Web experiences than have been afforded by previous generations of mobile devices.
The distinction between mobile Web applications and native applications is anticipated to become increasingly blurred, as mobile browsers gain direct access to the hardware of mobile devices (including accelerometers and GPS chips), and the performance of browser-based applications improve (speed- and capability-wise). Persistent storage and access to sophisticated user interface graphics functions may further reduce the need for the development of platform-specific native applications.
Once users are unable to differentiate between native and mobile web applications, the Mobile Web will refer generically to web access or use of Internet-connected apps from a mobile device.
Mobile Web access today still suffers from interoperability and usability problems. Interoperability issues stem from the platform fragmentation of mobile devices, mobile operating systems, and browsers. Usability problems are centered around the small physical size of the mobile phone form factors (limited resolution screens and user input/operating limitations).

Mobile Internet

Further information: Mobile browser, Wireless broadband, and Mobile Internet Growth
'Mobile Internet' refers to access to the Internet from a mobile device, such as a smartphone or laptop via integrated capabilities or via an independent device (such as a USB modem or PCMCIA card).
Today USB modems are HSPA (3.5G) modems. Many users "tether" their smartphones to their laptop or personal computer with the wireless device providing access to the Internet via 3G, GPRS or CSD.

Standards

See also: List of mobile phone standards


Total data consumed by Opera Mini users worldwide from 2006 to mid-2008 in TB
The development of standards is one approach being implemented to improve the interoperability, usability, and accessibility issues surrounding mobile web usage.
The Mobile Web Initiative (MWI) is a new initiative set up by the W3C to develop best practices and technologies relevant to the Mobile Web. The goal of the initiative is to make browsing the Web from mobile devices more reliable and accessible. The main aim is to evolve standards of data formats from Internet providers that are tailored to the specifications of particular mobile devices. The W3C has published guidelines for mobile content, and is actively addressing the problem of device diversity by establishing a technology to support a repository of device descriptions.
W3C is also developing a validating scheme to assess the readiness of content for the mobile web, through its mobileOK Scheme, which will help content developers to quickly determine if their content is web-ready. The W3C guidelines and mobile OK approach have not been immune from criticism. This puts the emphasis on Adaptation, which is now seen as the key process in achieving the ubiquitous web, when combined with a device description repository.
mTLD, the registry for .mobi, has released a free testing tool called the MobiReady Report (see mobiForge) to analyze the mobile readiness of website. It does a free page analysis and gives a Mobi Ready score. This report tests the mobile-readiness of the site using industry best practices and standards.
Other standards for the mobile web are being documented and explored for particular applications by interested industry groups, such as the use of the mobile web for the purpose of education and training.

Development

The first access to the mobile web was commercially offered in Finland in 1996 on the Nokia 9000 Communicator phone via the Sonera and Radiolinja networks. This was access to the real internet. The first commercial launch of a mobile-specific browser-based web service was in 1999 in Japan when i-mode was launched by NTT DoCoMo.


Evolution of mobile web standards
The Mobile Web primarily utilises lightweight pages written in Extensible Hypertext Markup Language (XHTML) or Wireless Markup Language (WML) to deliver content to mobile devices. Many new mobile browsers are moving beyond these limitations by supporting a wider range of Web formats, including variants of HTML commonly found on the desktop Web.

Top-level domain

The .mobi sponsored top-level domain was launched specifically for the mobile Internet by a consortium of companies including Google, Microsoft, Nokia, Samsung, and Vodafone. By forcing sites to comply with mobile web standards, .mobi tries to ensure visitors a consistent and optimized experience on their mobile device. However, this domain has been criticized by several big names, including Tim Berners-Lee of the W3C, who claims that it breaks the device independence of the web: 1
It is fundamentally useful to be able to quote the URI for some information and then look up that URI in an entirely different context. For example, I may want to look up a restaurant on my laptop, bookmark it, and then, when I only have my phone, check the bookmark to have a look at the evening menu. Or, my travel agent may send me a pointer to my itinerary for a business trip. I may view the itinerary from my office on a large screen and want to see the map, or I may view it at the airport from my phone when all I want is the gate number. Dividing the Web into information destined for different devices, or different classes of user, or different classes of information, breaks the Web in a fundamental way. I urge ICANN not to create the ".mobi" top level domain.

Seven mass media

Since the first ringing tone was sold on the mobile phone in Finland in 1998, the mobile has emerged as the seventh of the mass media. Today a wide range of paid media content is consumed on mobile phones ranging from 9.3 billion dollars of music and 5 billion dollars of videogaming to horoscopes, virtual gifts, jokes, news, adult entertainment, etc. Also like on all other media, advertising appeared onto mobile when a free news service launched in Finland sponsored by ads in 2000. In 2005, The Crazy Frog ringtone became the first mobile ringtone to cross over into the mainstream music charts, beating Coldplay for the Number 1 spot on the UK charts.

Advertising

Main article: Mobile advertising
Advertisers are increasingly using the mobile Web as platform to reach consumers. The total value of advertising on mobile was 2.2 billion dollars in 2007. A recent study by the Online Publishers Association reports that about one-in-ten mobile Web users said they have made a purchase based on a mobile Web ad, while 23% said they have visited a Web site, 13% said they have requested more information about a product or service and 11% said they have gone to a store to check out a product.

Limitations



Social network service mobile graphical user interface (Facebook)
Though Internet access "on the go" provides advantages to many, such as the ability to communicate by email with others and obtain information anywhere, the web, accessed from mobile devices, has a large number of limitations, which may vary, depending on the device. However, newer smartphones such as the iPhone and those using the Android operating system overcome some of these restrictions. Some problems which may be encountered include:
Small screen size – This makes it difficult or impossible to see text and graphics dependent on the standard size of a desktop computer screen.
Lack of windows – On a desktop computer, the ability to open more than one window at a time allows for multi-tasking and for easy revert to a previous page. Historically on mobile web, only one page can be displayed at a time, and pages can only be viewed in the sequence they were originally accessed. However, there are apps for the iPhone (e.g. Oceanus), as well as browsers such as Opera Mini  for Java ME, allowing multiple windows, but sometimes a limited number, and not multiple windows in the same screen.
Navigation – Most mobile devices do not use a mouselike pointer, but rather simply an up and down function for scrolling, thereby limiting the flexibility in navigation.
Lack of Javascript and cookies – Most devices do not support client-side scripting and storage of cookies (smartphones excluded), which are now widely used in most Web sites for enhancing user experience, facilitating the validation of data entered by the page visitor, etc. This also results in web analytics tools not being suitable for uniquely identifying visitors using mobile devices.
Types of pages accessible – Many sites that can be accessed on a desktop cannot on a mobile device. Many devices cannot access pages with a secured connection, Flash or other similar software, PDFs, or video sites, although recently this has been changing.
Speed – On most mobile devices, the speed of service is very slow, often slower than dial-up Internet access.
Broken pages – On many devices, a single page as viewed on a desktop is broken into segments, which are each treated as a separate page. Paired with the slow speed, navigation between these pages is slow.
Compressed pages – Many pages, in their conversion to mobile format, are squeezed into an order different from how they would customarily be viewed on a desktop computer.
Size of messages – Many devices have limits on the number of characters that can be sent in an email message.
Cost – the access and bandwidth charges levied by cellphone networks can be high if there is no flat fee per month.
Location of mobile user:
if advertisements reach phone users in private locations, users find them more distressful (Banerjee & Dholakia, 2008)
if the user is abroad the flat fee per month usually does not apply
Situation in which ad reaches user – When advertisements reach users in work-related situations, they may be considered more intrusive than in leisure situations (Banerjee & Dholakia, 2008)
The inability of mobile web applications to access the local capabilities on the mobile device can limit their ability to provide the same features as native applications. The OMTP BONDI activity is acting as a catalyst to enable a set of JavaScript APIs which can access local capabilities in a secure way on the mobile device. Specifications and a reference implementation have been produced. Security is a key aspect in this provision in order to protect users from malicious web applications and widgets.
In addition to the limitations of the device itself there are limitations that should be made known to users concerning the interference these devices cause in other electromagnetic technology.
The convergence of the Internet and phone, in particular has caused hospitals to increase their mobile phone exclusion zones. A study by Erik van Lieshout and colleagues (Academic Medical Centre, University of Amsterdam) has found that the General Packet Radio Service (GPRS) used in modern phones can affect machines from up to 3 meters away. The Universal Mobile Telecommunications System (UMTS) signals, used in 3G networks, have a smaller exclusion zone of just a few centimeters. Not surprisingly, the worst offenders in hospitals are the doctors (New Scientist, 15 September 2007, pg.5).


(source:wikipedia)

Saturday, October 16

Samsung Galaxy S Froyo,Update Pushed To Next Week

Samsung Galaxy S smartphone users will have to wait for another week before they get the much talked about Froyo (Android 2.2) update. It is the latest version of Google's Android Operating System. It will be available to all the Samsung Galaxy S smartphone users regardless of their network operators.

Earlier slated to be released in September, the Froyo did reportedly make a brief appearance yesterday. According to Phandroid, a news site, the Froyo was posted to Samsung's OpenSource Website yesterday, but has been removed since then.

Simon Stanford, Managing Director Samsung mobiles(UK and Ireland)stated' "In the UK market, we are currently in final stages with our testing to ensure the upgrade is as smooth an experience as possible. Further information in relation to roll-out will be available early next week.”

PR news, a site based on product review and all the news related to it has reported that the source code for Android 2.2 has now been released and is available to use.

According to Phandroid, this does not necessarily mean that the official Samsung Galaxy S Android 2.2 Froyo update is about to come, but release of the source code does imply that a unofficial Froyo ROM for the Samsung Galaxy S will soon be available.

It is said that these changes will give Samsung Galaxy S smartphone users an enhanced and improved experience in search and navigation. To give a better idea of the latest addition Simon Stanford said, "The upgrade will give users access to new features, enhanced navigation applications and improved performance."




(source:lanewsmonitor.com)