Dolphin is a Gamecube and Wii emulator
Most games run perfectly or with minor bugs. Games are playable at HD quality, with 1080p and more. This is a remarkable feature the actual Gamecube and Wii consoles are not capable of. As an open source project everyone can commit improvements. The code is hosted on code.google.com. Dolphin is actively developed and almost every day new features are added and bugs fixed as well. Dolphin is a multiplatform project and many operating systems are supported. Dolphin runs on Windows 7 (x86 and x64), Mac OSX and Linux.
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.
PPSSPP is an open source project, licensed under the GPL 2.0 (or later). Anyone is welcome to contribute improvements to the code. Partly thanks to such contributions, PPSSPP’s compatibility is steadily increasing, letting us all play our PSP games on the devices of our choice.