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.
Previous next big things include development of the capture and intermediate compression technology in iShowU-HD; design and implementation of a small advertising network; the refinancing, technical direction, and a lot of the donkey work for Virtual Katy; technical direction, project management and (again) donkey work for VoiceQ; creating code and intellectual property around load balancing that was acquired by Allied Telesis; and the research and an implementation of the h.264 video compression protocol.