Apple to ditch IBM, switch to Intel chips
When Apple will switch to x86 and ia64 it will be possible to run mac osX on your own home bought computer, given that they don’t avoid it by changing some opcodes.
One other things is sure; they will loose some power. As long as they provide binaries and provide one set for all apple computers they will have to add support for both ppc and x86 in one binary distribution which will undoubtely be a lot bigger if not slower too.
It will be interesting to see how this issue will evolve.