If the question is CLASSIC Amigas,that is,those made by Commodore Amiga then 68040 is the limit;and the CPU cards contemporary to Commodore's existence MIGHT allow PPC use.
Then again,didn't Commodore people actually start or contract the Amithlon ?
So maybe Amiga OS on PC should stop being considered heresy!
Haven't been online with Amiga since 1992 BBS days,but have used Amiga Forever as recently as a couple months ago online DSL.
