"With the change in architecture the difference between Macs and Wintel boxes is, more or less from a consumer’s point of view, purely aesthetic."
This is an idiotic thing to say. I don't give a damn that my 12" Powerbook has a non-Intel, non-x86 processor. I like it because it is one of the best laptop designs on the market at the moment, with a fantastic OS. That's what I use. The processor is irrelevant.
Oh, and you know what? The "architecture" of the Intel Macs is still very different from Wintel boxes. You may or may not have noticed that the BSD architecture is somewhat different to Windows...
Apple Computer: Software Only in Five Years