QEMU is a high-performance, cross-platform “machine emulator and virtualizer” that can emulate PowerPC systems, among others, launch a variety of operating systems (including classic Mac OS and modern OS X), emulate FPU and MMU hardware, as well as multiprocessors, and take advantage of in-kernal accelerators (e.g. KVM in Linux). (See QEMU documentation and links plus … Continue reading "QEMU"