Id Software has had minimal success developing games for cell phones. It ported its popular Doom title over to the cell phone platform with Doom RPG, as well as developing two original Orcs and Elves games for phones. Ultimately, the three titles sold only a combined two million copies. The problem, at least up to now, is that cell phones have been less than ideal gaming platforms. They typically have small screens, limited processing power and memory, and awkward controls. But according to an article on Forbes.com,