One of the world's first smartphones using the Windows Phone 7 operating system, the HTC HD7 for T-Mobile pairs rich mobile multimedia features with a 4.3-inch touch display--the largest screen available on a Windows Phone 7 handset in the U.S. Its size not only gives you an extra-large virtual keyboard, but also allows you to enjoy your favorite videos and movies in cinematic style. It's also powered by a blazing-fast Qualcomm 1 GHz Snapdragon processor for a fast mobile data experience.The HTC HD7 delivers advanced phone features including GPS functionality with access to turn-by-turn navigation from TeleNav GPS Navigator, 16 GB of internal memory, a 5 megapixel autofocus camera with dual LED flash, and HD 720p video recording. Other features include Wireless-N Wi-Fi networking, Bluetooth for hands-free devices and stereo music streaming, and a 1230 mAh battery for extended use while on the go. Enabled for T-Mobile's high-speed 3G network, the HTC HD7 offers fast data delivery and an enhanced Web-browsing experience that lets you connect quickly to social networking sites. And the 3G-enabled HTC HD7 will benefit from the enhanced speeds of T-Mobile's upgraded HSPA+ network, which is being rolled out nationwide to reach up to 200 million people by the end of the year and offers speeds close to 4G connectivity (read more about HSPA+ below).The Power of Windows Phone 7 The Windows Phone 7 operating system has been carefully crafted to help you get more done in fewer steps with a unique Hub and Tile interface. Instead of the common icon displays on the screen, Windows Phone 7 uses Live Tiles, which allow you to find out what's going on, what's happening next, and what you've missed without having to open an application. Hubs bring together a related set of applications, services and content into a single view to simplify common tasks. Your contacts, music, games, and work can be shared, synced, and accessed virtually wherever you happen to be.