So, I just tested my iPod Nano on my G3 iBook Clamshell running OS 9, my iMac G4 running Tiger, and my Power Mac G5 running Leopard. Here are my findings: IT WORKS!!!! iTunes detects it, on the G4 and G5. Of course they both say that I need the 10.7 version of it. However, I can see the actual iPod via Disk Mode, and can write to it. And boy is it FAST! Oh, and Finder freaked out on OS 9 and forced closed. But you can at least charge it using USB 1.0. So, basically, we were all pretty wrong about the driver support. All it is is a super fast USB cable (that can push 3GB into the iPod in less than 2-3 minutes!!!!) that's reversed engineered. So, if you guys want to try and add the compatibility to the older versions of iTunes, it wouldn't hurt.