Well, as i see it, AmigaOS and MorphOS are supporting 3.1 APIs or something similar. Once they start to get a few native apps, they'll drop that emulation quicker then you can say, "drop that emulation"

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So keeping up with the times is a good thing. I think what woudl also be a good thing is to try add third party apps rather than official MorphOS or AmigaOS things to the set of features/requirements.
MUI is a good example. MUI will be included in AOS4 for some time to come. It will also be avaliable in MOS and in a compatible form for AROS.
But, as i've said in the news item discussion. In stead of trying to get users/developers to use these sets of tool, i think we should push AmigaOS/MorphOS/AROS developers to work in POSIX compliant. That way, we'll benifit the community on all platforms but we'll also have a wide range of software.
I know this will be a lot more difficult, because this will require some development time, but the result i think would be much worth it.
Not that im saying this isnt a goood idea. I needs to be done. Just correctly.