> The idea was to have AmigaOS 3.1 but on PPC. [...] they went for Hyperion [...] and
> gave them 4 months to make it. As we know, it took many years before they had
> something remotely working.

That was mostly because Hyperion willfully decided to not stick to their contract with Amiga Inc. and instead went for a much costlier solution than just doing a straight port (with transparent emulation where reasonable).