The next generation of PPC accelerator cards are in the pipe line and could be with us
soon.
unlike the original PPC cards that had dual processor working the new G4 cards will
run emulation software to mimic the 680X0 processor at speeds faster than a 68060/50
and of cause the G4 is faster than the 603e PPC's the new boards will also support
graphics cards.
See Phase 5 Digital Products Web Site.