It definitely looks possible. I found this forum thread while surfing...
http://forum.macbidouille.com/index.php?showtopic=102465&hl=interface
Here's a translated version (from French):
Personally, while it's cool, I still don't think it's feasible. But for those willing to do some breadboarding, it might make for a good project.
Wow, that's a pretty nifty bit o' hackin'. There was something along those lines from there that somebody posted here a few weeks ago. It's too bad that Google stops the translations about half way down each page.
Discussed previously on Applefritter
Not quite a Holy Grail...but close. Heck of a project, though.