Just a short impression of mine: If you look at current products from Microsoft and Apple I’m getting the impression that Microsoft successfully adapted the new design-is-important paradigm and shows products where product design like seen on the surface tablets consistently fit with the new metro design of Windows 8. On the other side Apple’s product design evolves, too – but the fancy glossy iOS/Mac OS X user interface only adapts in minor ways to the evolving of the hardware presenting it. For me it seems like Apple’s UI has many backreferences to the time of the first colored transparent iMacs.
I’ll do a detailled comparison, later.