I added the WAD files from the full version of quake today, with the clear-water patch applied. Its fucking awesome. I hope they can get some networking going... Quake has dated visually, but its still pretty fucking awesome when it comes to framerate and gameplay.
It's definitely true from impressions I'm seeing, but its not PERFECT... some people reporting weird issues, but it works
You have to install a Custom IOS (Wii's firmware), which I'm kinda iffy about...
Ok, I tried this tonight. Just out of curiosity mainly. And I can clarify something for you here...
Your wii has tonnes of IOS firmwares on it, just sitting on the NAND memory... they're all numbered and when an application / game runs, it requests an IOS to run it against. The CIOS you install is numbered with some ludicrous number like 249, whereas official ones released have numbered 20s through 30s currently. So in truth, it just sits there, neither the system menu or any channels / games will ever try to call it... its just for the benefit of homebrew apps I think.
Install the custom IOS with DVDX installer, have the Backup Loader beta in your Homebrew Channel folder(s), patch your ISO with the exe file, and burn it with imgburn (some other burn programs like gburner, etc don' work) ... load the game via the launcher in your homebrew channel, and voila, it works.
I've only tested The Force Unleashed (which having looked at reviews for all versions I never would have bought), but it works well. The DVD drive is restricted to 4x speed, so load times are longer. Thats not overly annoying in this game, but might be a pain in the arse for games that load regularly or stream content.
I've heard that some videos play choppy or videos have graphical glitches... this extends to video-textures like those used for the crowds in Mario Strikers. In the Force Unleashed, the LucasArts logo and what cinemas there are don't seem to suffer this problem. How you experience those problems probably depends on the game and the media you've burned on. I used a Verbatim DVD-R for TFU, and its flawless aside from slightly longer load times. I played through the first few levels and had a duel or two with my brother, and I enjoyed it more than I enjoyed the PS3 demo.
I read that waninkoko is going to release the source, even if he's sworn off completing the project himself... something to do with GNU licensing or some shit?