This is interesting as it may have an impact on a potential case against MorphOS.
Back when Amiga was still part of Gateway in 1999, they planned a QNX kernal based AmigaOS. Allan Havemose was in charge of that.
Here's a snip from an IRC chat that i've found
UltimateW> kingsmurf asks: Will AmigaOS5 have Arexx? GA
havemose> scripting language has not been decided yet. Arexx has lots of implementation issues (I've seen the source:), so there is more to it than you would expect. I think the real question is powerful scripting, not necessarily AREXX. GA
IRC Chat, May 1999That only mentions the source of AREXX, but you get my drift. Looks like there's no chance that MorphOS can claim clean room reverse engineering. :-o
Edwin