Cube64 is a port of the popular multi-OS N64 emulator, Mupen64, to the Nintendo Gamecube and Wii through the libOGC library. The emulator is planned to use dynamic recompilation of the N64 machine code to PowerPC (the Gamecube/Wii's ISA) and full hardware accelerated graphics to (hopefully) achieve full-speed emulation. Read more about Cube64 (Beta 1) (N64 emu for Wii)
SNES9x GX is a Super Nintendo emulator for Wii and GameCube based on the PC emulator SNES9x 1.51. SoftDev is responsible for the original SNES9x 1.51 GameCube port, whose work was continued by crunchy2. Wii support was added by michniewski, and SNES9x 1.51 was ported by Tantric. The project is currently being maintained by michniewski and Tantric. The GUI is powered by libwiigui. Read more about SNES9x GX v4.1.0 (SNES emu for GC)
ScummVM is a program which allows you to run certain classic graphical point-and-click adventure games, provided you already have their data files. The clever part about this: ScummVM just replaces the executables shipped with the games, allowing you to play them on systems for which they were never designed! Read more about ScummVM v1.0.0 (RC1) (GC misc)
SNES9x GX is a Super Nintendo emulator for Wii and GameCube based on the PC emulator SNES9x 1.51. SoftDev is responsible for the original SNES9x 1.51 GameCube port, whose work was continued by crunchy2. Wii support was added by michniewski, and SNES9x 1.51 was ported by Tantric. The project is currently being maintained by michniewski and Tantric. The GUI is powered by libwiigui. Read more about SNES9x GX v4.0.9 (SNES emu for GC)