A few months ago, Apple bought PA Semiconductor, a start-up chip manufacturer. Many speculated if Apple’s acquisition of PA Semi would mean an integration of their processors in Apple’s products.
Wei-han Lein has revealed that answer: yes. Lein is the Senior Manager of the chip team at Apple. On his LinkedIn page, Lein mentions that he manages the "ARM CPU architecture team for iPhone."
Right now, the iPhone uses ARM processors manufactured by Samsung. But with the development of a new processor made specifically for iPhone by PA Semi, Apple would no longer have to worry about the compatibility of a processor made by a third-party.
So the speculation is no longer, most likely to the chagrin of the ultra-secretive Mr. Jobs.
(Source: New York Times)