That won't work. My USB Wacom Intuos tablet will not work.
My SCSI devices (ORB drive and Yamaha CDR/RW drive) won't work, because the firmware for my SCSI card is not compatible with OS X.
I have an HP laserjet 5P that won't work (Had it left over from my PC days- connected w/ a USB to parallel converter and works via PowerPrint under OS 9).
So far, all I can do is network my G4 with my G3 powerbook, and exchange files between them. I'd like to be able to use all these peripherals at some point.