@Navin R Johnson: FreeBSD is not Linux, or even a modded version of such. And what exactly do you define as an operating system?

And FYI, though many of the components are open-source, the operating system as a whole IS Apple's intellectual property and is not open-source in itself. Where can you *legally* download a free build of OS X that isn't a beta?

Also, Psystar purchasing legal copies of the operating system is moot. Those copies, provided that they're still in their original seals, were not the copies used to install on the machine. They either got a hack on the internet, or hacked the OS from one DVD and just distributed it to all of the systems to ship out. How is this legal?