I really hope this story pans out to be true.
Now that AMD have CPU's that are as powerful (or more powerful) than similar spec'ed Intel CPU's and at a lower cost, it totally makes sense that Apple would consider using AMD CPU's/APU's.
Apple and AMD already have a close working relationship when it comes to GPU's, so Apple will probably get very favourable price's on CPU's resulting in higher margins on their retail products.
I'm just surprised it's taken them this long to make the jump ...
Having official AMD CPU/APU support in MacOs will open up a whole new world for the Hackintosh community.
Cheers
Jay