Mac OSX on a PC?

PearPC is an architecture independent PowerPC platform emulator capable of running most PowerPC operating systems.

It’s in the very early, very buggy beta stages, but it looks like there may be some hope of OSX running side-by-side with Windows on an Intel/AMD system.

Of course if you are interested in running multiple operating systems on a single machine, you can already do that with a Mac and VirtualPC