I picked up the 360 version earlier today and gave it a go. So far, VERY impressed. I can already tell this is one of the best games currently out there. It's along the lines of, if you have a 360, you NEED to get this game, much like Gears of War, and likely Halo 3 when it's out.
There's a setting in the option to shut off V-Sync on the 360, which boosts the frame-rate from a locked 30fps to up around 60fps give or take, with page-tearing. Very nice.
The first part is exactly like the demo, until you get towards the end of the demo part. They added a bunch of stuff into the demo, making it harder, than the actual game (flying bots, sentry units).
Oh yeah, and the sound in this game is AMAZING. 5.1 surround sound really pays off.
