i've seen it online, been tempted to install it on a 2nd hard drive on my dell, but i don't have the patience to do it...wouldn't mind have a tri-boot machine, linux, xp and os x
besides i heard you can't really install any 3rd party apps, and Apple crippled this OS X for good reasons too. Only what you get is it, the basic OS X no plug-ins are supported or anything.
I'd hate to see what Apple is gonna do to the Dev that leaked OS X, i heard it was pretty bad for the dev that put OS X Tiger on the Bit-Torrent network.