The PPC issue didn't affect Apple when it changed platforms. Neither of the makers of these PPC OS' has written off the idea of doing an X86 version.
Hi, we're talking about Amiga OSes here. OS4 and MorphOS only run on PPC. Calling the PPC a dongle is more of a joke than anything. Bottom line, Amiga OS4 and MorphOS
currently only run on particular hardware, which you'll need if you want to run those OSes.
..and if you think the PPC issue didn't affect Apple when they changed platforms, ask them how much they spent on development to get OS X on x86.