Of course, but given that most people here also seem to have x86 boxes too:
Perhaps it's just me, but I can't imagine myself sitting there thinking:
"I need to run blender. My time is important! I have a stinky quad core PC already with free OS and blender available, but what I really need is to run it on a considerably slower G5 and buy an OS to run on it so that I can wait several times longer for it to render my stuff!"
Perhaps is my only system was a G4 box, I might think:
"I need to run blender. My time is important! It's not so fast on this G4, a G5 would be nice."
But I'm much more likely to think
"I need to run blender. My time is important! It's not so fast on this G4, what's the cheapest and best performing kit I can get to do it?"
I downloaded blender for OS4, it works and is fine, but if I needed to render seriously, my PC is far, far faster. SSE3 optimised and blender can use all four cores. I'd have to have real issues to choose the former in preference to the latter if it was something I wanted to do seriously.
G5 on morphos is perfect and the fastest "amiga" never see, you can launch a amiga program, like lightwave 3d, aladdin, art effect etc at the speed of 75% of ppc cpu using jit trance... this is a lot and a lots of mips, 1.8ghz give more than 5.000 mips for amiga native 68k aplications, warpos/powerup and morphos more than 7.000 mips, i think morphos can boot on a micro sencond

and with very little memory usage windows is slow loading system, loading, loading loading... and consumes a lot of ram, morphos is ultra fast and mega-optimized, and of course, amiga compatible.