Just popping in to say howdy to y'all from my trusty old G4, now running Leopard with a little help from my hacked installer

Leopard runs amazingly well on this machine. It actually manages to be faster than Tiger. It's a very nice overall experience. Obviously some of the more graphics-intense things are a wee bit slow on this machine, but overall the experience has been great and I'm gonna be switching over to Leopard on this machine as its primary OS

Oh, btw, the specs are as follows...

Model Name: Power Mac G4

Model Identifier: PowerMac3,3

Processor Name: PowerPC G4 (2.9)

Processor Speed: 500 MHz

Number Of CPUs: 2

L2 Cache (per CPU): 1 MB

Memory: 768 MB

Bus Speed: 100 MHz

Boot ROM Version: 4.2.8f1

With the stock Rage 128 Pro 16 meg graphics card. And it STILL gives decent performance

Just some words of encouragement to you out there considering Leopard no your unsupported Mac.