The annual DICE Summit is now underway in Las Vegas with Valve's co-founder Gabe Newell giving the high-end game conference's keynote address. Gamespot covered the event and had some highlights from Newell's speech.

Newell sees their games like Team Fortress 2 and more recently Left 4 Dead as more than stand alone products but as services and that constant updates help improve service and sales for those games. Newell said they have offered a whopping 63 patches and content updates for Team Fortress 2 since the original version was shipped. (In fact a new update for the game to fix an exploit was released just last night)

Having Valve's famous Steam weekend sales increases revenue greatly for game titles. Just last weekend, Valve had a 25 percent sale for Left 4 Dead and Newell said sales were up a whopping 3,000 percent during the period. Also new Steam users jumped another 1,600 percent during the time period.

You know those cool Team Fortress 2 character videos? Newell stated the team behind those videos will be producing a Team Fortress 2 comic book as well. There's no word if it will be an online comic or sold in comic book shops.