I played G.R.A.W. for three hours yesterday. I got through several levels and earned a bunch of points. It's the best game I've ever seen. Incredible levels, beautiful graphics, excellent gameplay, it's the first game I've seen that would convince me to buy a 360. It really shows the next-gen capacities of the 360.
I've also heard that 360s are starting to show up in stores, I'm going to stop by a few places this week and see if it's true.