I've said this privately before but it just occurred to me to make a blog posting so I can say "told you so" when it finally happens.
We are going to be seeing 16 core ARM based Macs sooner rather than later.
Think about it. They (Apple) have moved entire processor architectures
twice on the mac (68k->ppc->i386); have already ported the majority of OSX to ARM; have bought an ARM based design company and are making their own chips; both OSX 10.6 and iOS4 are all
obsessive about parallel execution of tasks and now ARM will be making (or, rather, licensing)
a 16 core design.
It's gonna happen.