Microsoft has been porting its Metro design across it line of products. The latest in adopting of Metro UI is the support section of Microsoft's support website.
Microsoft's support page uses now popular tile interface to separate each support area. The update is being rolled out in phases and, according to our forum users, not everyone has the updated page as of this posting.
The idea behind the changes is to create a unified user experience across all of its products. This bold new look for Microsoft is a departure from their traditional safe and steady approach.
Metro was first shown off on the Windows Phone platform and is now making its way to other Microsoft products including Windows 8, Xbox 360, and many of the Internet based assets that Microsoft owns.