And arguably one of the best emulators already released for everyone's beloved Linux based handheld. It's called Lemonboy and you can download it for free from this lovely Wiz friendly place. The emulator has a ton of options, runs brilliantly in full speed and, besides the Game Boy and Game Boy Color, can even emulate that SNES Super Game Boy oddity thing. Mind you, I've already tested it with a variety of roms and they all loaded and played just fine. Brilliant!