[rant]Caps lock off.[/rant]
Marklar is the rumored port of OSX to the x86. I am pretty sure it is only a rumor though, so don't get your hopes up...
Though, I have read that Apple has been in talks with AMD, and there is more rumor about panther being a 64bit os that could run on AMDs 64bit procs. Fucking rumors. Would be cool though. still expensive on AMDs new procs (what are they called, Hammerhead and something else??).