There are ways of making Mac OS run on anything...

Not legal of course (ty very much, Apple), but if you own Mac OS 10.5 I'd say screw them just do it. You
bought it. I do what I want with what I buy. eg Windows XP Pro. I
bought it... no, thank you, I don't want to activate it. So I got another copy, identical except no activation. Sweet.

Pirated software FTW (if you own it legally, of course.

)
Although... has anyone noticed how much XP costs, and then though that this OS came out in like 2001??

Although since every service pack is like a new OS, perhaps not. But every service pack is based on the same code, just patched and optimized. Hmm. Thoughts?