While GDC is still going on the Valve team at Seattle are working hard on updates for their games. Tonight a new update for their zombie co-op shooter Left 4 Dead has been released and intros a interesting new feature into the game. To quote from the patch's release notes: "Introduced fatigue to the melee attack in versus mode. You will see a HUD display when your melee swing is cooling down." The patch also fixes a few bugs in the game.

Speaking of Left 4 Dead, the game's official web site has finally been updated with a new news post that hints at some future updates to the game, including how matchmaking for the PC and Xbox 360 versions will be different in future patches.