GeckoReader is a program to be run under Windows that will open a command prompt and output what it reads from a USB gecko. You must have the USB gecko installed, set up the COM drivers, and have .NET 2.0 for this to work properly. Then whatever buffer is sent from the Wii/Gamecube should pop up on the screen.

Changes:

Can send a file or data stream to Geckoreader, which will save the buffer as a file
Can make a hexdump of a buffer, which is sent through the gecko

http://wiibrew.org/wiki/Geckoreader

WiiRadio is a SHOUTcast stream player. It can read from thousands of Internet radio streams and play them back on the Wii.

Changes:

Skins
Languages
Genre Searching
New visual system
Bug Fixes

http://wiibrew.org/wiki/WiiRadio

MegaCodeDownloader is a cheat code downloader for the Wii. The project is currently being maintained by tpw_rules but was previously maintained by Megazig.

Changes:

Now has working GUI
Create GCT files

http://wiibrew.org/wiki/MegaCodeDownloader

c64-network.org (Frodo based) is a Commodore 64 emulator written by Christian Bauer. It was ported to the Wii by Simon Kagstrom, and many C64 games are fully playable on the Wii with it. So go ahead and beat your friends in International Karate, Boulder Dash or Bomb Jack. This version is not the same as Troy Davis implementation, but Troys work is available in a branch in the subversion tree.

The emulator works best in 480i mode. It runs perfectly fine in 576i mode as well, but does not utilize the full resolution. This is an SDL issue, and will not be fixed until SDL-Port supports it. Sound support is slightly buggy, but usable. The emulation itself is not perfect, so not all games will run under Frodo.

Note to those using network play: the network connection broker requires the latest version of Frodo, so please upgrade if you plan to use the network support!

Changes:

Various small fixes here and there
Fix sound when paused
Fix nunchuk/classic controller joystick
All fixes in the v1-rcs

http://wiibrew.org/wiki/C64-network.org

It’s Yahtzee for the Wii coded by Chris.

Changes:

Fixed issue where it was possible to get billions of points due to Bonus Yahtzee points in the upper section not being removed properly when move was undone. (thanks Ricky de Jong)
Removed occasional graphical glitch affecting Painted Yahtzee rules.

http://wiibrew.org/wiki/Yahtzwii

Yabause Wii is a Sega Saturn emulator for Wii and is the first of its kind as emulating the complex processes of the Sega Saturn is much harder then it looks and now even harder to run it on the limited hardware of the Wii.

Changes:

fix user-clipping
add subsubmenu of selecting sound driver
some minor fixes and changes

http://wiibrew.org/wiki/Yabause_Wii

Wii7800 is a port of the ProSystem emulator developed by Greg Stanton. Additional changes developed by Ludovic Jacomme aka Zx-81 (PSP port), Leonis, and gdement.

Changes:

* GX based scaler (smoother scrolling in Plutos, Xevious, Motor Psycho)
* Ability to adjust screen size to any size/dimensions via the “Screen Size” option under “Display”. If this is entered after loading a cartridge, the last frame will be displayed to assist in sizing.
* Fixed graphical glitches in Ballblazer
* Implemented RANDOM (read) and SKCTLS (write) for Pokey sound emulation
– Ballblazer now plays all sounds
* Minor refactor of Pokey code
* Some minor adjustments to the Light Gun related code
* Updated palette (from Underball)
* Updated menu code, GX rendering of dip switches and debug information
* Ability to set HBLANK period, Dual-analog support in ProSystem database

http://www.wiibrew.org/wiki/Wii7800

Visual Boy Advance GX is a Game Boy Advance / Game Boy emulator for Wii and GameCube based on VBA-M.

Changes:

* Fixed ROM allocation. Should solve some unexplained crashes
* Numerous performance optimizations (thanks dancinninja!)
* DVD / USB 2.0 support via IOS 202. DVDx support has been dropped. It is highly recommended to install IOS 202 via the included installer
* Multi-language support (only French translation is fully complete)
* Thank you to everyone who submitted translations
* SMB improvements/bug fixes
* Minor video & input performance optimizations
* Disabling rumble now also disables in-game rumbling
* Fixed saving of GB screen position adjustment

Source: http://www.wiibrew.org/wiki/Visual_Boy_Advance_GX

http://code.google.com/p/vba-wii/

FCE Ultra GX is a modified port of FCE Ultra v0.98.12. With it you can play NES games on your Wii/GameCube. The GUI is powered by libwiigui.

Changes:

* DVD / USB 2.0 support via IOS 202. DVDx support has been dropped. It is highly recommended to install IOS 202 via the included installer
* Multi-language support (only French translation is fully complete)
* Thank you to everyone who submitted translations
* SMB improvements/bug fixes
* Minor video & input performance optimizations
* Synced with official FCEUX (various game fixes)
* ROMs larger than 3 MB now load
* Now also searches in application path for gg.rom and disksys.rom

Free and legal NES roms to try with this emulator can be downloaded from here: http://www.pdroms.de/files/nes/

Source: http://www.wiibrew.org/wiki/FCE_Ultra_GX

http://code.google.com/p/fceugc/

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.

Changes:

* New core! Updated to Snes9x 1.52. Old save states will not work!
* DVD / USB 2.0 support via IOS 202. DVDx support has been dropped. It is highly recommended to install IOS 202 via the included installer
* Multi-language support (only French translation is fully complete)
* Thank you to everyone who submitted translations
* SMB improvements/bug fixes
* Minor video & input performance optimizations
* Now uses .srm files without “Auto” appended, if found
* Added option to disable crosshair

Free and legal SNES roms to try out with this emulator can be found here: http://www.pdroms.de/files/supernes/

Source: http://www.wiibrew.org/wiki/Snes9x_GX

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