If it doesnt work on rev5 motherboards A LOT of North American users will be screwed. A high % of A500 mbs ive seen are rev 5 in usa.
My collection agrees with this, I have half a dozen Rev5 machines in various states, and a single Rev6 (also a Rev 4, that is a complete mess, broken sockets, and such.)
If someone has a link to more information about this incompatibility, I'd love to see it, as an ACA500 was on my wish list..
