@KennyR

??
Different (better) Southbridge = same board ?
Different (better) BIOS = same board ?
But yes MorphOs is said to have been running on the TeronCX
(A1), but with the old BIOS. Running a unmodified Pegasos-
version on an A1 will probraly not work (just like the other
way round).
But since someone mentioned it:
Who's gone repair faulty A1s ?
Eyetech who were once talking about selling a consumer board
with a BGA-socket (and have nothing to do with the actual
development/production of the boards) or do you need to send it
to Taiwan ?