Given Herb's presence in the field I suggest we at least give him the benefit of the doubt... I am a bit suspicious of all these new bells and whistles myself, but I will take the time to play around with the new toys before I make up my mind.
I would be interested to see for example how generics map to native C++. If everything is kocher and purely for notational convenience there might be something worthwile there and maybe we should be more open with something that is largely platform specific anyways (and so is COM in general really, or are people doing COM without ATL or the MS COM extensions?!)
IMHO the whole Metro style apps business is purely a mobile industry related political move by MS, I am surprised they expect the whole desktop world to just convert! But the C++ dev in me is happy to be included in the latest MS trend for once (as long as you aren't trying to trick me into going managed!)