After playing with a NES, Game Boy, and Playstation 1 emulators, a current release of a SNES emulator has been released in a beta version. The video shows the emulator running at promising frame rate. As of now the beta release isn't open to the public, but can be obtained if you're impatient by donating to the dev team. No idea when it'll be out but I know I still have to finish Zelda: The Minish Cap on the Game Boy emulator.  [Via Engadget]