PC and Xbox 360 content being worked on at the same time.

Left 4 Dead screenshot

Speaking in a late December Kotaku video podcast, Valve's Chet Faliszek revealed that had it not been for the Christmas holiday we'd have had an announcement regarding Left 4 Dead DLC by now.

The good news is that new content is on the way, for both Xbox 360 and PC and by the sounds of it we won't have to wait very long for more info.

"We have the DLC coming, we're going to do the 360 at the same time as the PC," he said. "If it wasn't the holidays and people weren't taking all these vacations here at Valve, you'd have seen that announcement already."

Presumably this means an announcement is imminent.

If you're yet to give Left 4 Dead a try you really should. The zombie shooter managed to beat off some extremely strong competition to claim the VideoGamer.com Game of the Year 2008.