Left 4 Dead 2 the sequel to the best selling 2008 multiplayer game of the year, will be released on November 17th! And if you pre-order the game you'll receive a special offer like the american baseball bat to use in game when you first play, rather than starting off with pistols like in the other.
more about that here
Just like the original, L4D2 is only avaialble for PC and Xbox 360
sorry playstation fans!
more info about the game here!