"Probably," says Geoff Keighley, in his new iTunes app/article: The Final Hours of Portal 2. The multimedia piece offers a striking look at the inner workings of Valve Software, the makers of such industry staples as Half-Life, Team Fortress, Left 4 Dead, and their sequels. The Final Hours of Portal 2 is an online article currently for sale at the iTunes store. To access it you need only to follow the link above. The most intriguing portion of co-op news come from a conversation Keighley heard between between Gabe Newell, Valve's founder, and Erik Johnson, the company's project manager: