Macworld: News: Analysis: Why Apple picked Intel over AMD

..."Why didn't Jobs, ever the maverick, opt for the scrappy challenger, Advanced Micro Devices, instead of the old-money establishment, Intel?

The reason, industry analysts say, is that Jobs has a clear goal in mind: innovative designs. And such designs require the lowest-voltage chips, which IBM and Freescale were not going to make with the PowerPC chip core - and which AMD has not yet perfected.