vwestlife
Veteran Member
The rights holders of AmigaOS is complex, but known. The Apple II community ran into this problem with trying to get WordPerfect for the Apple II and IIgs reclassified as freely distributed. Turns out that Corel doesn't own the rights to it. I don't recall how that wild goose chase ended.
"Having obtained the rights for Word Perfect IIe, IIc v1.1 and WordPerfect IIgs v2.1x in December of last year from the owner and copyright holder Larry Epstein, I hereby release them both into the public domain."
http://apple2.org.za/gswv/a2zine/Sel/WordPerfectPD.html
AmigaOS is still actively being developed, although they did release an ominously named "Final Edition":
http://www.amigaos.net/