A few points for all you cheap bastards clamoring for Apple to open OS X up to anyone with a Walmart PC clone..
1. Scenario...Apple licenses OS X to Dell. Cool you think? No..Imagine the response from Microsoft. I was an OS/2 user from 1992-2000. I know what it's like doing battle with the Microsoft FUD machine. For those of you who were too young to remember it, the Microsoft "behind the scenes" work to undermine OS/2 was something we don't need repeated with OS X. I'm quite sure Apple isn't that stupid..The last company they need to piss off is Microsoft.
2. OS X released to the "world" so to speak would destroy sales of Apple's hardware sales, plain and simple. And there would be no more Apple...Apple is company, they have to MAKE MONEY (wow, what a concept no one seems to understand) to continue to produce the quality products everyone seems to want to steal, hack, feel they have the "right" to use wherever, etc..
3. Apple has EVERY RIGHT to control what hardware OS X runs on. It's their software. What law says they have to make their software run on anything? I don't see people clamoring at Microsoft to make their software compatible with Linux..or Linux users screaming that Microsoft needs to release Office for Linux?
Want to run something better than Windows on your PC? There's a zillion Linux distros out there, FreeBSD, NetBSD, OpenBSD, Plan9, Solaris, the list goes on. Install one and expand your horizons.
I've been involved with computers and this industry for over 20 years. My first computer was a Commodore VIC-20 I got in 8th grade in 1981. First PC clone in 1988..Bought my first Mac 4 months ago..Still wondering what too me so long.

Hope to get a another (PPC) Mini before they switch to Intel.
I understand better than most why people like OS X...Let's just keep it on Apple hardware..
-Lyserjic