Perhaps, as another poster has said, Apple already have an x86 port. But if they are thinking about the future, and who will be making their chips in the future, perhaps that x86 port is a precursor (or part of) a port to the x86-64. Afterall to the best of my knowledge Microsoft have not yet said whether they will port Windows to x86-64 (no direct competition between Apple and MS) and AMD needs someone to buy the chips. AMD can also provide chips in the numbers Apple will need.
I tend to think it will be better for Apple to consider an x86-64 port than a straight x86 port. Of course I wouldn't expect AMD's initial Hammer offerings to be particularly cheap.
Perhaps, as another poster has said, Apple already have an x86 port. But if they are thinking about the future, and who will be making their chips in the future, perhaps that x86 port is a precursor (or part of) a port to the x86-64. Afterall to the best of my knowledge Microsoft have not yet said whether they will port Windows to x86-64 (no direct competition between Apple and MS) and AMD needs someone to buy the chips. AMD can also provide chips in the numbers Apple will need. I tend to think it will be better for Apple to consider an x86-64 port than a straight x86 port. Of course I wouldn't expect AMD's initial Hammer offerings to be particularly cheap.