I dunno, this might be right up there with Dell meeting with AMD back in the day, mostly rumor and meant to keep Intel honest. Yes, it finally happened, but good God it took a while. I like AMD products overall, but in the mobile sector they're lagging behind Intel for power usage. On the high end however I can't imagine consumers would sneeze at some variety in the Mac Pros and the xServe solutions.
I guess the main way to understand this is as competition between AMD and Intel, not AMD/ATI and nVidia. Apple will go with whoever has a solid solution. Intel is currently shafting nVidia in the licensing department which meant Apple couldn't get an updated version of the AIO ION chipset for the new i3/5/7 chips. If AMD could put out an integrated solution like nVidia's, allowing for say 80% of Intel's processing power but with an integrated GPU that would provide for a seamless user experience and pick up some of the CPU processing slack (hence making the CPU differential moot), and, keep the power use down Intel itself won't have anything to compete with. Intel's M.O. when it comes to integrated GPUs is JETGYB, or just enough to get you by. Oddly enough, unless Intel were to get it's GPU sh!t together, it would likely have to partner with, you guessed it, nVidia!-to compete with such a platform from AMD.
