Sorry, but I don't agree here, Ok, there's no memory protection, there's no multi-user architecture, no Posix and no "whatever fancy feature you feel a question of life & death", but I don't think average people will ever list OS features and decide what to buy.
They will, instead, ask basic questions like "will this make me surf the web without issues? will this allow me playing my videos? will this hel me with my every-day duties?" and so on. You can positively answer to all these questions even without such "modern" features, but providing the necessary applications.
With the current number of Amiga users you are right, but IF (big if i know) it became a mainstream OS the lack of modern features would make it a hackers dream. We currently have security by obscurity but without protected memory, multi-user etc writing exploitations would be fairly simple and very dangerous online.
But as for a Amiga games console, thats probably the daftest proposal I've heard in a long time, does the proposer know that Sony, Microsoft and Nintendo all sell there consoles at a loss relying on licensing software to generate income, the complete opposite to hyperions business model which is overpriced hardware and no software.
Gaz