The change would require programmers to rewrite software to take full advantage of the new processor, and some experts have criticized the plan.
"If they actually do that, I will be surprised, amazed and concerned," said Insight 64 analyst Nathan Brookwood. "I don't know that Apple's market share can survive another architecture shift. Every time they do this, they lose more customers" and more software partners."
Even if this comes to pass, don't expect a version of Mac OS X for PCs, though - the OS will still be Apple bound, but it is possible that some software hackers could reverse engineer the code to produce such an OS, but this is purely speculation.