Daxter was a tremendous success on PSP, even without the presence of his broody, angsty teen co-star, Jak. Well, a rumor is circulating around the web, speaking about the possibility of a PSP Jak game. The (warning) oft-unreliable Wikipedia appears to have a record of the rumor: it began when the resume of voice actor Robin Atkins Downes revealed two unannounced titles: Jak PSP and Big. Since then, Big has turned into Naughty Dog's upcoming PS3 title, Uncharted: Drake's Fortune. Could Jak PSP be far behind?