Ballmer banks on Windows Phone 7 for the future

C|Net | at | by Mike

Steve Ballmer hopes "7" will be Microsoft's lucky number as the company restarts its mobile business with the release of Windows Phone 7.

On Monday, the CEO of Microsoft and his team of Microsoft executives took the wraps off the latest version of the Windows Mobile operating system at a press conference here at the Mobile World Congress. The new Windows Phone 7 is a fresh start for the company in mobile.

"There's no question that a year and a half ago we had to rethink everything," Ballmer said.