MS user interface design cues on web pages?

I saw this format on the local public media web site. I was immediately struck by the similarity to the tiles on Windows Phone 7. I have to wonder if the design inspiration for the tiled appearance might be Windows Phone and Windows 8? Perhaps a harbinger of design decisions to come? The fun part about that is that even the most simple CSS implementations can make use of tiles. After all, they are only colored rectangles and squares.