Well, I got it to work and it's a little bit short but pretty sweet. Enemies are pretty smart too, they're searching for cover and jump trough windows or from platforms to escape from you if you're owning them.
Only downside is that it takes alot of computer to run it properly.
I got a
p4 2.6 ghz
512mb ddr
geforce 6600GT
and running it at 800x600 with minimal details still gave me framedrops at some points in the demo, altough they usually didnt last longer than 1 second, it still can be a bit annoying. The developers said that they're still tweaking the code and stuff like that so that it will run smoothly on average systems aswell. I hope so...