[fidotron]

That is an interesting idea.

At one point I had a machine which allowed movement of data between apps running in Windows 3.1 on a DX4 and Risc OS on a StrongARM. I'm wondering how hard it would be with OSX (a far stricter OS than Win3.1 or Risc OS) to allow a sort of process level separation, where the OS and any ARM compatible processes are running on an ARM, but you keep an x86 around and spin it up for certain processes.

[metrix]

This sounds like it is ripe for a Semi-custom chip from AMD, where they sell an ARM/X86 SOC