Shacknews said:The release of Valve's cooperative zombie shooter Left 4 Dead has been postponed until November 20, company president Gabe Newell revealed to Gamekings.
"Left 4 Dead is going to be released on the tenth anniversary of Half-Life, our first game," said Newell. "That will be on November 20th, the third week in November."
The oft-delayed title had previously been slated to hit PC and Xbox 360 on November 4. No reason was provided for the brief delay, though the crowded fall season - Gears of War 2 arrives November 7 - is believed to be a factor.
Shacknews article