Feh. I knew what to expect going into that MTV show because...it's MTV. ADD-edited mishmash of 2 second clips while some crappy rap-rock band blares in the background and celebrities that you don't care about talk about how awesome the system will be. So in that respect, it wasn't disappointing since it was exactly what I knew it would be.
Still, what little was shown ranged from "that doesn't look any better than what we have now" (Tiger Woods 06, Tony Hawk) to "that's a little better, I guess" (Project Gotham 3, Perfect Dark Zero, Madden) to "OH MY GOD" (Need For Speed). By the time the system comes out I'm sure all of the above will be more impressive though, so there's no reason to pass final judgement at the moment.
What DOES annoy me about the MTV show is that they didn't even mention a lot of the appealing aspects of the system...all they did was talk about the wireless controllers and the capability to buy stuff for your in-game characters online (bah).
Oh well. Regardless, so far, so good.