Grab headphones and listen!
The game is previewed, with the real in game sound, near the end. But listen to the whole thing, and remember that it works in real time on pretty much any current platform. With any luck, we'll have an SDK ready for Q1 2010, maybe even earlier.
Oh, and that's still part 1. If you're interested in animation and if you think that what NaturalMotion did was pretty cool, you'll be in for a big treat later on.