Mac-on-Linux (MOL) is a virtual machine which runs
Mac OS (inlucluding Mac OS X) on top of Linux/ppc. There is no CPU emulation involved since MOL runs natively on the PowerPC processor. Mac OS versions 7.5.2 to 10.4.8 are supported.
Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.