The BBC redesigned its web site last year borrowing elements of Microsoft’s Metro design language, as seen in Windows 8, Windows Phone, and Office 2013. Note the tiles, the typography, the horizontal scrolling, the way elements stand out against a pale background.
The BBC site is the 5th most popular in the UK and 47th in the world according to Alexa.
This strikes me as a significant design win for Microsoft. One of the goals of redesigns is to make your stuff look fresh and modern, while other stuff looks dated, and it helps drive an upgrade cycle.