PCWorld: At the Mobile World Congress in Barcelona, Steve Ballmer took the wraps off Windows Phone 7--the newest Microsoft operating system for mobile phones. The new design focuses on "features" rather than applications, in hopes of making the phones more personal. "Phones looked like PCs, but a phone is not a PC, it's smaller, more personal," said Joe Belfiore, vice president for Windows Phone.
Key features of the new phone include "live tiles" that update automatically with information from the Internet, integration with the Bing search engine, an on-screen QWERTY keyboard, and spacious graphics. A number network operators and phone vendors have committed to supporting phones with the new OS.