I think it's too early to tell at this point.
I can say my personal preferences would put Natal at end of list, simply because I feel physical feedback is critical, but of course I might prove to be in the minority.
One thing's for sure, we're going to see a lot more motion control games on the back of this, plus the real possibility of multiplatform MC titles hitting Wii, PS3 and 360 at the same time. Crazy stuff.
Try to be reasonable... its easier than you think...







