Watch it here:
http://e3.gamespot.com/video/6265852/?hd=1&tag=top_stories;play_btn;6
They take things much slower than they did on stage, so you have more time to take it all in, and it is incredibly impressive.
It's looking they're fixing every single tiny issue from the last game. Moving in and out of cover is much more fluid, dialogue sounds more natural and not as forced, Rico isn't totally fucking useless, etc. etc.
I'm still saying it: Killzone 2 > Killzone 3 is gonna be like Uncharted > Uncharted 2.