OK, I know all about Amithlon, tested it at the time, yes its only x86 recompile of AmigaOS 3.x not new OS or any way forward.
It was the way forward, McEwen knew it, and rejected it. Perhaps an act
of big-corporation tampering. All other things you mentioned about Amithlon,
would have turned out quite different, with some minimal financial support for the project, which was on the precipice of greatness.