Yeah now we've seen more proper gameplay I'm officially psyched. I was reading about it in a magazine earlier too and it's much more of a psychological horror thriller than I was expecting — comparisons to Resident Evil and Silent Hill were frequently being drawn. For some reason I always had it in my head as a Max Payne-esque action game.
Some of the stuff they were describing to make you jump sounds awesome though, and interestingly the camera isn't player-controlled but is instead tactically used to make your shit yourself.
I think Remedy is basically a Valve doppelganger when it comes to taking ages to make their games but them being amazing when released. I remember Max Payne was being hyped for ages before it eventually came out, though that's long forgotten.