Smartphone Application Development

Smart phones and feature phones may be thought of as handheld computers integrated within a mobile telephone, but while most feature phones are able to run applications based on platforms such as Java ME, RIM, Android, symbianOS, WinCE.

In a nutshell, a smartphone is a device that lets you make telephone calls, but also adds in features that you might find on a personal digital assistant or a computer--such as the ability to send and receive e-mail and edit Office documents, play media and web Access, instant messaging services.

Smartphone usually allows the user to install and run more advanced applications. Smart phones run complete operating system software providing a platform for application developers.

Operating System: In general, a smartphone will be based on an operating system that allows it to run productivity applications. BlackBerry smart phones run the BlackBerry OS, while other devices run the Palm OS or Windows Mobile. There are smartphone OS that are pared-down versions of desktop Linux, too.
List of OS platform Smarthpne.
Windows CE Pocket PC OS would be offered as "Microsoft Windows Powered Smartphone Microsoft originally defined its Windows Smartphone products as lacking a touch screen and offering a lower screen resolution compared to its sibling Pocket PC devices.

RIM released the first BlackBerry which was the first smartphone optimized for wireless email use and had achieved a total customer base of 32 million subscribers.
Nokia launched the Nokia Smartphone Series which integrated a wide range of features into a consumer-oriented smartphone: GPS, megapixel camera with autofocus and LED flash, 3G and Wi-Fi connectivity and TV-out. In the next few years these features would become standard on high-end smart phones.