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There are some people who have managed to get Leopard working on non-Apple computers, however NO you will not be getting it working yourself.
That sounds like a challenge! Send me a copy too ;-D
In seriousness though, thanks for clarifying the reason it's not been released as OSX86 yet. That's a very good reason. Other than it being fun, no one needs 10.5 now but the developers, so I don't actually want a copy. I would be interested in knowing general hardware compatibility though.