As mentioned, Apple has plenty of experience switching architectures, so technically it's not a huge issue. Don't hold your breath though; since Apple's going o

As mentioned, Apple has plenty of experience switching architectures, so technically it's not a huge issue. Don't hold your breath though; since Apple's going out of it's way to build custom ARM cores now, it's safe to assume ARM (or if anything, a custom arch sooner than Intel) is their future now. Apple got burned when IBM couldn't keep up power/performance on PowerPC, leaving their fate entirely to a third-party is a mistake they're unlikely to make again.