You know those Atari controllers that let you play Atari games without actually having an Atari? That, it seems, is the future of the Guitar Hero franchise, with Activision CEO Bobby Kotick indicating that new titles from the company will be playable "independent of a console." It's perhaps a natural step, as the franchise's developers must surely spend half their time frantically porting games from PS3 to Xbox 360 to Nintendo DS to graphic calculator to well, you get the picture. Kotick also said some wondro