@TheMagicM
If MOS development really has stalled I suppose Hyperion could develop an unsupported/semi-supported OS 4 port as a gift (albeit not a free one) to Pegasos owners. But would even an unsupported AmigaOS cause people to buy Pegasos over AmigaOne?
I think Genesi said they had considered a Mac port of OS 4, but obviously it's difficult to see that happening now.
With a Mac port - Linux being an exception - you do run up against what Be Inc ran up against, which is being made to feel "unwelcome" by Apple and denied any kind of documentation. That was enough for Be, although I felt at the time they gave in too easily... Again, it's for an armchair pundit to say that.