Whether MacOS X can run on a non-Apple computer or not is completely irrelevant. What matters is whether Apple gives an end-user or a company permission to install it on a non-Apple computer. They don't. It's their decision.To address your (once again, uninformed) comment, in actuality, 98% of the drivers do exist in OS X because 98% of the components inside Macs are the exact same compontents/protocols as generic PCs.
Analogy fails. It doesn't matter why Apple doesn't allow Psystar to sell MacOS X. What matters is whether it is anti-competitive or not. And for that we need to look at whether Apple prevents Psystar from selling computers. Apple doesn't. Dell sells many times more computers than Apple without MacOS X. HP sells many times more computers than Apple without MacOS X. All that Psystar has to do is build good computers at a good price, get a license for Windows or get Linux running, do some advertising, build some support, all the things that Dell has done, and they can easily outsell Apple 5 - to - 1 without MacOS X.Analogy FAIL. PC-DOS was developed by Microsoft and lisenced exclusively to IBM. Microsoft wasn't at risk of being anti-competitive by only licensing PC-DOS to IBM. Apple, on the other hand, is denying licensing of OS X in order to attain sales of an unrelated product: their hardware.