I heard that officially the shoulder buttons take you back and forth without warning, and that there is no way to map keys (for example, tell the arrows to be WASD for games that require it). Under CFW 6.60 me is it possible to use any kind of custom key mapping? To be clear, I would be using .swf files instead of browsing to the games - if that makes a difference. Assuming this is possible I basically found a work around to get .exe files to run on the PSP outside of windows emulation: use a .exe to .swf conversion tool. Without keymapping that would be kinda useless though.