i have a psp 1000 that i hacked and the dpad on it sucked really bad. i actualy ended up opening it up and took the dpad out, and took the dpad from a ps2 dualshock controller and filed it to fit inside the dpad housing, i found an issue though in that the central boulge that makes it wobble, preventing opposing direction presses was missing. i ended up fixing that with a tiny tiny beed from my mom's beeding craft droor and some gel superglue, and stuck the bead to the underside center of the dpad, then covering it up with a thin layer of super glue again so the bead was set within the glue on the dpad's underside, preventing it from coming loose. after all this i assembles the case back together [which was surpriseing simple, inuitive, nonintrusive and easy]. i now have a wonderfuly functioning dpad which is now highly accurate and pulls off flawless diagonals [the problem with the original one was it refused to do diagonals without excessive pressing.