PPSSPP is the first PSP emulator for Android (and other mobile platforms), and also runs faster than any other on Windows, Linux and MacOSX. PPSSPP is in its early stages and game compatibility is thus still somewhat spotty.
Play your PSP games in HD!
PPSSPP can run your PSP games on your PC in full HD resolution, and play them on Android too. It can even upscale textures that would otherwise be too blurry as they were made for the small screen of the original PSP. Even on modern Android phones and tablets, you can often run at double the original resolution.
February 1, 2015: 1.0! Finally, 1.0 is out, with a ton of new improvements! Note that it can take a while for it to become available in the Play store, depending on your location and Google's datacenters.
DOWNLOAD: