Well.. all of these 'porting MorphOS to another CPU architecture' discussions are nice, but a bit pointless - unless you are a Dev with MorphOS source code access.

If you want to run some AmigaOS on other archs you can already do this with AROS. Here you can already help/improve existing ARM or amd64 support. Which in turn could even be a benefit for MorphOS in the future if some Dev wants to have a look at already working AROS ARM code for instance.