SNES9x GX is Super Nintendo Entertainment System / Super Famicom emulator based on SNES9x, ported to the Wii and GameCube. The GUI is powered by libwiigui.

Features:

Based on Snes9x 1.53
Wiimote, Nunchuk, Classic, and Gamecube controller support
SNES Superscope, Mouse, Justifier support
Cheat support
Auto Load/Save Game Snapshots and SRAM
Custom controller configurations
SD, USB, DVD, SMB, Zip, and 7z support
Autodetect PAL/NTSC
16:9 widescreen support
Open Source!

Changes:

* More accurate pixel scaling (thanks eke-eke!)
* Other minor changes

http://code.google.com/p/snes9x-gx/