leopard on unsupported mac

So, as you may know, I sold all my PPC Macs but one, my iMac G4 700MHz. It was running Tiger, but after I heard the LeoRebirth dock issue would soon be fixed, I decided to upgrade to Leopard. The way I used to do this was to boot my iBook G4 (which, by Apple's requirements, supported Leopard)...

As my signature states, I have a 700MHz iMac G4, 15 inch. It's currently running Tiger and I'm pretty happy with it. TFF works pretty well with tweaks, and there is some software that supports it. Normally I always prefer Tiger. But in the past month or so I've seen more of the advantages to...