I just saw the video, also at gametrailers.com, and i am very impressed with how you integrate physics into the game. It's seems like a step forward from games like HL2, since you actually have to perform the gestures for interaction, instead of just clicking "use" on the objects. I believe it will bring a great deal of immersion with it.
I was/am a great fan of the old Penumbra demo, and seeing this video just makes me want the final episodes even more. Also, the graphics are stunning and extremely atmospheric. That's what i like most about Penumbra; the silence, the puzzles and the atmosphere. Please continue this trend - never change it.
Det ser superfedt ud gutter! Godt arbejde
// El Senator