07/19/2010 10:52 am ET Updated May 25, 2011

Windows Phone 7 REVIEW: Critics Preview Microsoft's New OS

Although Microsoft's new mobile operating system, Windows Phone 7, won't be out until sometime later this year, critics have already taken a first look at an initial, not-yet-finalized version of the revamped operating system.

Here's what reviewers from Engadget, Wired, Fast Company, Boy Genius Report, and CNET have to say about the preview of Windows Phone 7. Keep in mind--there's no telling what tweaks and improvements Microsoft will make between now and the launch of Windows Phone 7, so check back