sure you can, the Fedora Core 3 works with a bit of tweaking and I hear that Fedora Core 4 comes with builtin PPC support. but as you said, its pretty pointless. OS X panther is simply an awesome operating system, and the powerbook range is fantastic. i'm really hoping that they manage to get those G5's to run cooler so they can get G5 powerbooks out. if you're getting a mac, i suggest waiting just a wee bit for tiger to come out. its due to be released this half, whilst rumour has it it should be somwhere in april. apple's not too bad when it comes to deadlines so i think it should be here by june at least.