The vast majority of us who use both PCs and Macs probably saw this coming, but I don't think anyone, me included, saw it coming anywhere near this soon: Mac OSX Leopard, released on Friday, October 26th, has already been cracked to run on x86 PCs.
The crack was engineered by the developers at OSx86 Scene, with a tutorial quickly posted by Daily Apps.
The installation process involves a patched Leopard DVD, and some additional files that are downloaded via a zip file and usually installed using a flash drive. Leopard can then be installed on a clean MBR (Master Boot Record) partition. This crack is in its infancy, so should you decide to try it, keep in mind that the risk to your system is unknown, and that some of your hardware, such as sound cards and network cards, may not work under Leopard. The dangers and the bugs will certainly be reduced with time. Apple, of course, does not condone this process.