According to Hyperion-Entertainment's IRC session on AmigaWorld.net AmigaOS 4 Prerelease 4 would have been OS4 final if there had been hardware available.
Personally, I just hope they get the bugs worked out so I can copy my hard drive from my MicroA1-C and sell it off soon. I've never had much luck with it. I'm sure it can be fixed but I don't have the patience to deal with it. It has hardly been used since I got it. I want a PowerVixxen LT!
