Hackers have reportedly found a new loophole in the Wii's Internet Channel that could allow the running of unsigned, home-made code on the console.
Apparently the exploit lies at the heart of the Flash Player (the software used for watching Flash-encoded video - like on YouTube) embedded within the Wii's web browser, and could allow the homebrew scene that's rife on PSP to kick off on Nintendo's hardware.
This could, among other things, lead to the creation of game emulators on the console - a disaster for the Virtual Console, which charges gamers to play games from Nintendo's huge retro library.
Nintendo was unavailable for comment at the time of writing, but we expect Nintendo to take hasty action to prevent the hackers achieving their sneaky goals. Of course, you'll invalidate your warrantee if you hack your Wii, so you probably shouldn't.