Valve apparently threw Boomer bile all over Left 4 Dead 2, because hordes of consumers gobbled up two million retail copies globally since its release a couple weeks ago. Valve won't release the Steam digital distribution sales data, which is not included in the retail count. According to the developer, sales are currently double that of the original, with "Black Friday" helping to push copies into the hands of players (who now have their hands full with two Tanks, a Spitter, a Hunter, and a Jockey coming in for the kill). Valve also noted that information about L4D2's first batch of downloadable content would be coming very soon.