@downix:
motorola/x86/etc.. whichever way I think the point is to take the best
technology below the price bar for most people and apply it in a clever way.
That's what commodore did. Any m68k/PPC is plain nostalgia or for embedded
development not cutting edge.
Even if you don't like non-free cpus they may work as a temporary solution
in the meantime to let one concentrate on other issues.
@Skyraker:
What kind of PPC/Amiga software was made?, is it up to par with currently
available software packages today?
What hardware requirements are needed?, just a PPC cpu or more?
@Kronos:
I think you point to a serious issue. Original pcb designs use through hole
and non-RoHS. And thus any component that will match right off is likely to be
expensive in production and not legal to sell in EU nor will supply likely to
be available. So.. 3.3V and FPGA

@AJCopland/HenryCase:
You point in an interesting direction. Alpha 21164 etc.. why not make our own
cpu design that is optimized for speedy FPGA implementation. Let's not stare us
blind on current cpu architectures (sparc,m68k,ppc,etc..) but make our own
rules. And any ASIC solution later on will for sure be able to handle any
FPGA quirks.
@HenryCase:
Don't wake the patent bear :-)
Amiga was not only the custom chips, but also how things were wired together
on a system level. And software to go with it that was efficient.