As far as rumors go, this one is about as thin on the deets as they come, but Cnet Asia is reporting that Sony Ericsson senior VP of Product and Application Planning, Rikko Sakaguchi, actually alluded to plans for a game-playing phone at a recent press event in Sweden. During what was presumably the Q&A portion of a media conference in honor of the merged company's fifth anniversary, Sakaguchi reportedly answered a question about a theoretical PSP phone (most decidedly NOT pictured above) by saying simply that Sony Ericsson "is working on something," but that "the surprise must be kept for the future." Yeah, we know, not too much meat here -- Sakaguchi did mention that the objective was to integrate gaming and communications functions, not to create a dedicated gaming device (whatever that means) -- however, after the relative success of its Walkman and Cybershot lineup of handsets, it certainly makes sense for the company to leverage the PlayStation brand in this market as well. Sony Ericsson would be wise, though, to learn from Nokia's experience with the N-Gage, which is that, well, people don't like the N-Gage. So, here's to hoping that the Ericsson side of the equation can knock some sense into the Sony side of the equation, or else we may end up with a bulky, side-talkin' handset which uses even more proprietary formats that no one is interested in.