When speaking with the Official Xbox Magazine, OXM, at a London preview event, Valves VP of Marketing, Doug Lombardi confirmed that they have plans on releasing a multiplayer demo for Left 4 Dead 2 ahead of its release in November.

“With Left 4 Dead in particular we’ve found that word of mouth really is the strongest thing,” Lombardi said. “With Left 4 Dead 2 we plan to do a demo before the game comes out that’ll have multiplayer in it. And hopefully we can continue the free weekends with the full game post-launch.”

[Valve confirms Left 4 Dead 2 multiplayer demo via OXM.co.uk]

Not so long ago we received news that a Left 4 Dead demo was on it’s way for the Xbox 360 and still we are yet to gain details on the game until now… According to Video Gamer, Gabe Newell, managing director and co-founder of Valve, told them at the Leipzig Games Convention some important details for the Left 4 Dead demo. Newell told them that the Left 4 Dead demo will include the first part of one of the four campaign ‘movies’, most likely The Hospital level that was demonstrated to the press. He also revealed that the demo will home online cooperative play as well as single-player, but he wasn’t able to reveal the release date for the demo.

“We will be releasing demos for both the Xbox and for the PC. I don’t know what the date is for release on that, though. I think it’s going to contain the first part of one of the campaigns. I think it’ll probably be Hospital but I’m not sure. That’s a decision that Doug Lombardi is making.” said Newell. Left 4 Dead is due out for PC and Xbox 360 on November 21 2008.

Last week, rumors around the web started circulating that a PS3 version of Left 4 Dead is in development. Apparently that’s not the case, as a Valve spokesperson told CVG “There’s no PS3 version currently in production.” If you are a PC gamer and 360 owner you should rejoice. Valve is still developing the 360 and PC versions of the of the game.

Marketing man Doug Lombardi told CVG earlier this year, “We’re not PS3 developers – we’re doing PC and 360 like with Orange Box. EA came to us and said ‘Wow, Orange Box was an incredible project, can we do a PS3 version?’

“Left 4 Dead doesn’t have that guaranteed appeal yet – it’s a new IP,” Lombardi explained. “If you mention a new Half-Life, people want to make as many versions of it as possible. If Left 4 Dead is big, then we may see a PS3 version later, or if and when we do a sequel, people may be more interested in that.”

Looks like our chances of seeing Half-Life 2: Episode 3 at E3 have been shot down by Valve’s marketing boss. According to an e-mail sent to Next-Gen.Biz, Valve’s marketing boss Doug Lombardi has confirmed with them in a e-mail Friday that the next installment in the Half-Life franchise would not be shown at E3 2008. But, he did confirmed that a playable version of Left 4 Dead will be displayed at E3.

In a recent interview Doug Lombardi( Valve marketing vice president) revealed that this upcoming multiplayer co-operative survival horror FPS game will be coming to the PC and Xbox 360 worldwide in November 2008.

In the interview he was asked if they would have a free weekend-This would give player a chance to play the game  through Steam then have a chance to buy it- He said that "We’re kicking around a lot of ideas now and nothing’s final" but did say that there would “definitely” be a free weekend with a very possible demo.

Valve believes in quality and even though “the game is pretty much playable all the way through right now” they still want to fine tune the game to make sure that it is “approachable to players of all skills.” Doug also commented that Valve is interested in branching out into other genres such as MMOGs and family-friendly titles.

Valve Interview Part 2: Left 4 Dead Demo Potential, the Evolution of Steam, and More [ShackNews]