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Questioned by financial analysts about the possibility of making the switch, which would mean that Apple machines could match the megahertz speeds of rival PCs, Jobs replied that the company first had to complete the transition to OS X, 'Then,' he said, 'we'll have options, and we like to have options.'

Despite Apple's efforts to persuade computer buyers that megahertz is only one measure of a computer's performance, and not the best measure at that, Apple machines, which currently top out at 1GHz, are still widely perceived as slower than Intel-based PCs which exceed 2GHz.

Switching Macs to Intel or alternatively AMD processors would not necessarily mean that you would be able to run OS X on any Intel- or AMD-equipped machine. Apple could incorporate ROM chips in Macs without which OS X would not be able to run.