Threads like these make me remember why I keep watching from the sidelines. It is so much fun to see the predictions, counters, and whatnot that people come up with relating to the Amiga! Weeee!
I always thought that if an Amiga-like OS was going to be based on another kernel and other underlying stuff I would hope it would be like this:
GoboLinuxA really nice sensible way of organizing things.
Write a new Workbench for it (like Finder on top of Darwin) and change or mirror the bash commands with "Amiga-named" versions that take "Amiga-compatible" parameters and it just might be close enough to be passable as a "new" Amiga OS. Would be for me anyway.
Still hoping on AROS though.
And for good measure.... no way OS5 will see the light of day. :-P It is fun to think about. That and play Scorched Tanks on e-uae on my Mac are all I really have to do with the Amiga anymore.