Facebook has plans to expand its mobile strategy and become a platform for developers to distribute apps, according to Erick Tseng, Facebook head of mobile products. "Where we're going from here is a platform strategy. We're going away from a one-off app strategy, said Tseng, at VentureBeat's MobileBeat conference. Part of its mobile platform strategy will likely include making it easier to find apps and distribution more social, he said. "Inevitably,