AMD is not IBM or Apple, and this doesnt mean that Apple
is coming out with dual core CPU's anytime soon. You can wait and see,
or you can get a really killer machine right now that should last quite
along time as far as processing power goes.
There was an article a few months ago that Apple and IBM ARE working on mutli-core machines based on one of IBM's higher end computers which is already in existence. It will be coming to us too.