I took some time to look at the videos of Metro/Windows 8 and also download the Developer Preview. Plenty of information is already available at the MSDN website. Probably the best of the presentations is the one given by Jensen Harris - 8 traits of great Metro style apps. Taking these 8 great traits point by point I’d like to give you my impressions as a long time iOS and Mac developer.
I often like to complain about Windows. As a longtime Apple programmer I can’t help it. Growing up and growing old with this industry I’ve just seen too many ripoffs perpetrated by Redmond. I think that corporations get an imprint from their founders, and that imprint, those patterns of working and behaving stay with them for a long time. Many times they persist even after the founders have long since left the scene.