Valve "Trying To Work Out" Cross-Game Play Between L4D1 & 2

TVG:

Valve's VP of Marketing, Doug Lombardi has revealed to TVG that the developer is looking at providing cross-game play between the original Left 4 Dead and its incoming sequel.

Such a feature, which would allow players of the original Left 4 Dead to play alongside other users running Left 4 Dead 2, is one of the demands made by the now 37,000 member strong Left 4 Dead 2 boycott group on Steam.