I've been playing around with Yellow Dog and Fedora Core, and I've successfully gotten ZSNES to run. I haven't had any luck with MAME, nor have very many others from what I'm hearing. There's something really disturbing about playing Seiken Densetsu on a Sony system, though... I'm a Mandriva user, though, so I really wish they would port it over (which isn't likely, sadly).
I can't wait for one of the Wii Linux projects to get done, as well.
I can't wait for one of the Wii Linux projects to get done, as well.