>Just as a reminder, the original software in question would be Commodore AmigaOS 3.1, which was released in 1994, or an even older version of it. Just based on screenshots alone, the difference between a default installation of AmigaOS 3.1 and MorphOS should be rather obvious.

Living in the US and dealing with US regulations, I'm still of the opinion that MorphOs breaks no copyright laws even under US legislation
MorphOS is not AmigaOS and US regulations do not prevent another OS from running software intended for a different operating system..