The Teensy is programmed to poll the SNES controller buttons and read the accelerometer ... It was not quite as easy or quick as the typical PC gamer left hand: WASD, right hand: mouse stance.

[foo] sent in this amazingly well done mod to add an SNES controller to a PSP. He was contacted with a request to mod a PSP for someone who had limited use of one hand. The PSP controls were too ...

it appears whatever device the controller was connected to seems to be playing Super Mario World. That's a SNES title, of course—which suggests that its being emulated on a Windows PC underneath.