Power PC Ubuntu Mini (Formerly Mac Mini)
I finally made my old Power PC-based Mac Mini useful. I installed the latest fUbuntu release on it, which even though the makers of Ubuntu don’t officially support, works reasonably well.
Of course, you get a lot less “non free” software since Power PC on Linux is even more of a bastard stepchild than Linux on Intel. I also have to give up Google Chrome/Chromium since it only runs on Intel or ARM hardware.
Even so Ubuntu seems a lot more snappy than OS X Tiger seemed to be.