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Bathaxx is a safe way to enable homebrew on a Wii without hardware modification. Bathaxx is achieved by playing a hacked game save for LEGO Batman which executes a homebrew application from an external SD card. Examples of such homebrew .elf or .dol files can be found on the Homebrew applications page. The bathaxx was created by Team Twiizers & lewurm.
MPlayer CE is an unofficial port of the very popular multimedia player for various platforms including Windows and Linux. This Nintendo Wii port features the same compatibility that the other versions offer, but is limited in some aspects as it can't playback some high resolution videos due to the processing power of the Wii.
For those who haven't heard of it: Corsix-TH is an open source reimplementation of Theme Hospital, using Lua and SDL. It requires the assets from the original game (the demo version is included in the above package) and isn't quite complete, there's a few diseases and scenarios missing. It's definitely playable, although this build has audio disabled until the author can free up about 20MB of memory somewhere.
Gameboy/Color/Super emulator for Wii.I know the name is very silly, and I should name it something like "gb4wii" or something.
But it's my gameboy emulator. Which has as main highlights:
-Supports Gameboy, Gameboy color and SuperGameboy games.
-Runs up to 4 gameboys side by side!
-Gameboy 1 and 2 are linked with a link cable, so are gameboy 3 and 4.
-This linking works for pokemon trading!
The UI is a bit tricky right now, the Wiimote that clicks on the "load ROM" button is the one associated with that ROM. So if you want to play pokemon red, and pokemon blue at the same time, linked. Then do the following:
-Have wiimote 1 click "load ROM" and select pokemon red.
-Have wiimote 2 click "load ROM" and select pokemon blue.
-Click on "run emulation" with any of the wiimotes.
Just a huge list of 'problems':
-Zelda: Link's awakening seems to be dog slow.
-Speed for other games is to high.
-Supergameboy support isn't perfect, but works ok for pokemon.
-Kirby's dreamland 2 doesn't do anything.
-Sound sometimes has a high pitch in it which should be there.
-Graphics in zelda intro and ninja gaiden shadow (AKA Shadow Warrior, AKA Ninja Ryuukenden) are messed up at a few places.
-No scaling options.
-No button config options.
-No other controller support then wiimote.
-Saves to the same location as the ROM is loaded from.
It isn't finished yet, but posting it here to catch the early bugs and get a few tips about what I should add.
This is an application that makes the Wiimotes rumble. When you press +, the Wiimotes rumble, and when you press -, the Wiimotes stop rumbling. On the first Wiimote, press B to make all the remotes rumble, and A to stop all the rumbling.
A bolt throwing demo.
A multi device file explorer for the Wii by dimok and a GUI made with LibWiiGui by Tantric with graphics by NeoRame.
The Simple IOS Patcher is a modification of the original Trucha Bug Restorers. Its functions have been simplified and repaired. For patching is only the natural HW_AHBPROT Flagset the current Homebrew Channels needed and he also works on the Wii's system menu 4.3.
PattView Wii, the long-awaited Wii Homebrew release of the popular Animal Crossing: City Folk (Let's Go to the City!) pattern editing application. Fans of the PC application will find that the experience they're used to is now streamlined for use with the Wii Remote. First time users will find it incredibly easy to hop in and edit all of the game's 316 patterns. More experienced users can use some of the advanced tools to lay out murals and create beautiful works of art without limiting themselves with the built-in palettes.
A multi device file explorer for the Wii by dimok and a GUI made with LibWiiGui by Tantric with graphics by NeoRame. 
Install/Extract saved game files. Based on Waninkoko's SaveGame Manager.
Bennu is a high level open source game development suite which focuses on modularity and portability, making it a perfect choice for cross-platform game development.

Install/Extract saved game files. Based on Waninkoko's SaveGame Manager.
Install/Extract saved game files. Based on Waninkoko's SaveGame Manager.