[tc4me]

Yea, I've heard people have still been able to get fairly modern Linux installs on the G3/G4 Macs too. I'm sure the G5 ones actually wouldn't perform too terribly badly by today's standards (probably about comparable to a Core 2 Duo on the dual CPU models), but those processors were so power hungry that they never could quite get them to be practical in laptops.

That thing was like the Pentium 4 of PowerPC CPUs.  It probably was what finally spurred Apple to switch architectures once Intel figured out how to make more power-efficient processors.

Look here