Jason Snell, writing at Macworld:
Okay, so the 680×0 era lasted 10 years. The PowerPC era lasted 12 years. We’re now almost 11 years into the Intel era. All things being equal, the time seems right for a fourth processor transition, and soon.
It could definitely happen. I don’t want to say that it won’t, because Apple’s desire to chart its own course and not be beholden to other companies for key parts of its products is well known. Having proven itself a capable chip designer with the A series, Apple could very well dump Intel and strike out on its own.
But I don’t think Apple will.
Jason makes a lot of good points in this piece, and I agree with his line of thinking on this.