I doubt this will happen..
IBM is way ahead of Intel when it comes to processors...
XBOX 360 has a 3 core IBM processor, Nintendo Revolution will feature a 4 core IBM processor, and the Playstation 3 will feature a single Core processer featuring 8 "subcores".
Apple would be leaving the IBM line at the wrong moment. Intel and AMD are just starting to get into the mulicore PC business.
Imagine a dual processor G5 with 4 cores in each processor.. It's closer than you realize...
I disagree, but it doesn't really matter. The hottest, fastest chip in the world does you no good at all if your supplier can't make enough of them for you to sell to everyone who wants one. And it doesn't help when you make your best customer look like a fool for promising 3 GHz chips you can't deliver ;)