> AROS is not source-compatible with AmigaOS 3.1.

It may not be 100% compatible at this point. Actually, it's 82% compatible with AmigaOS 3.1 according to http://aros.sourceforge.net/introduction/status/everything.php (as of 6 years ago), but it clearly aims at full source compatibility, hence the restrictions.

> You get that most functions from amiga os are not compatible with amiga os

I've a hard time believing this "most functions" (i.e. >50%) claim (assuming that one of the two "amiga os" occurences means "aros).

> because they were never tested with 68k software.

Isn't this what OlafSch and wawa have been doing for years?

> ZUNE is worth nothing crap which is far away from MUI 3.8 from 1997.

MUI has not been part of AmigaOS 3.1, so Zune's MUI compatibility status has no bearing on AROS' source compatibility with AmigaOS 3.1.