Maybe Apple is getting into the Console market? AMD was chosen for the next gen Playstation and Xbox because integrated GPU/CPU capabilities is AMD's forte.
..heck, with AMD's current financial state and Apple's cash reserves, a buyout to bring processor/graphics developement/production completely in house without having to reinvent the wheel is a extremely far out but plausible solution. Samsung currently produces the A series processors for the iPhone/iPad and since they aren't exactly on friendly terms with Apple this would lend support to the idea.
Or if you really want to get outlandish, Apple might be considering to sell Apple clones again now that Jobs is gone
That would make a heck of a lot of sense given the recent news articles about Apple bringing chip development in house, think about it like this:
1) Can't drop x86 because of speed, ARM has got the battery life but it is in no way comparable to even a Core 2 Duo for godsake.
2) Can't drop x86 because of compatibility, even CNET and ZDNet's Apple fan boys said they would have no option but to switch back to Windows if Apple moved to an ARM chip for the Macs.
3) Can't continue with Intel because of cost, possibly, maybes? An Intel chip is still relatively expensive.
4) AMD is hanging by a thread really, if AMD goes, Intel has the whole market to itself, Intel bumps up the prices, everyone else has to bump up their prices to accommodate it, that includes Apple.
If you think about it, Apple bringing AMD as an in house chip developer, ensures, a) compatibility with existing applications, b) lower costs for Apple, c) better battery life for the Macs, d) better graphics performance. On the other hand, for everyone else, that means no competitor to Intel which will mean a hike in prices and just like with Microsoft and IE, slacking in innovation until someone else comes along.
Thank you Darky, you just sparked an intense debate between myself and a gentlemen for whom I'll be setting up OS X for.