looks pretty good, though not sure about the super jumping zombies, think that's a bit silly really.
Also noticed they didn't show any of the seeing through walls effect I've seen in other videos. Don't know whether it's supposed to be thermal imaging goggles or something it's been in several of the vids I've seen but I don't like the idea of it.
Valve
This should be quite a good game. Lot of involvement from Turtle Rock studios who developed Counter Strike Source iirc
Been looking forward to this, heard rumors it's going to be bundled with Episode 3.