yeah they have an x86 version now....
I know that--it only runs on Apple Intel hardware.
There is stuff built into the operating system that refuses to install if the system detects
Not to mention it uses EFI by default; it has to be hacked to use BIOS.
To get it legally, you need to buy a Macintosh or have a computer built with the right hardware or pay $500 or more via becoming an official Apple developer.
Other than that, it's illegal to install OS X on a standard x86 PC.
IOW, I cannot go out to the computer store, buy a copy of Mac OS X and install it on my crappy eMachines (though it'd be nice...)--I'd have to literally buy a Mac or pay heaps of money for a developer license.