"This pre-order promotion applies to all Steam PC pre-orders and all Xbox 360 and PC pre-orders from participating retailers in North America," reads a press release from the developer. The release did not mention which retailers are participating, but it is known that GameStop is taking part.
Valve added that the demo will feature both single-player and cooperative play for up to four players, and that it will arrive on the same dates for the Xbox 360 version as the PC edition.
"The demo concludes on November 18," according to the press release, when the full game will get its retail and digitally-distributed release.
Hm, I might have to pre-order then... But that defeats the purpose of a demo >_>... But I want to play... :[
thats my thought as well. i want l4d to be awesome... i want it to be the best thing since sliced bread... but i dont always get what i want. ive decided not to preorder until i have a chance to play the demo... but thats cool, i can wait an extra few days, the game will still be there...