1) something like PowerUP where you have a small API to start computational tasks that can be scheduled to the 2nd CPU/core but will also be able to run on single CPU systems. G4, G5, X5000
2) do the whole monty, make it proper SMP go 64Bit (bye bye G4) and maybe even AMD
It would be ideal if 1) could be done in a way that it turns out to be a stepping stone for 2) but that would require it to be 64Bit ruling out running these on anything G4 and maybe even on single core G5s.
