Forgive me for intruding here, but aside from PowerPC and x86, there is one other thing...
Has anyone had a look at Amiga's archival Atari, and the Coldfire Project to revive the old ST/TT platforms? >
http://acp.atari.org/Because it seems they (ACP) got a much better 68k chipset around (using the Freescale Coldfire chip, a much faster and compatible variant of the old 68k chip. Do you think such a board/chip could be converted to run classic Amiga software? I mean the Coldfire project does have ISA and PCI connections at the back (to connect with PC parts) and with the advent of FPGAs anything could be possible. Maybe a joint Atari+Amiga legacy board project could be worked on?