"Yahn worked on Half-Life's multiplayer code and is currently hard at work on Team Fortress 2."
"John manages online platform development for Team Fortress 2 and other projects. "
"where he is currently hard at work on Team Fortress 2"
"As part of the HL2 team, Eric is responsible for the...
I think that just like with the Steam release, Valve will have much more demand than they expected. After 5 years they still didn't realize they own. Too bad.
In the video with the manhacks, when one of them hits the wooden crate, it doesn't cut it, just brakes it to pieces. I guess that in order to cut it they would have to work 5 more years on the engine =)
So I guess glass will smash when you hit it. Maybe some bullet holes textures first.
Oh yeah, I just thought of that, if people keep analyzing to death every small detail about the videos, just think what they'll do when they have the game..