How much would it cost to port AmigaOS to x64?

[Iggy]

It would cost the combined salaries of every programmer on the project for as long as it takes to complete it, plus overhead/administrative costs...

That's the best answer so far.

[Iggy]

OS4 needs to remain PPC.

Why? Afraid it might make it into a C?USA system?
You can be one weird dude.

[Iggy]

...Even X1000 class CPU will struggle at decoding 720p...

Not true. I've decoded 720p on a G4 Powermac under MorphOS and as Fab has stated a G5 could decode 1080p just fine.

[Iggy]

I don't think OS4 has any viability on most X64 hardware, but I do think if we put it on something like Genesi's ARM boards, then it would be very viable as it would then be on low cost hardware which is powerful enough for most work.

Agreed, for an OS that doesn't support true SMP OS4 on an X86/X64 platform would be a waste.
ARM is low cost and a viable alternative.

[Iggy]

Hmm? I got my prescott core P4 Dell in '04, so thats eight years. And thats pretty sweet there, but since Netburst wasnt too efficient with its pipelines it doesnt surprise me.

Nope, Intel kinda blew it there.
Has to be the only time AMD actually slipped ahead of them (that ain't happening again).

[Iggy]

AMD is a pretty good company however, and I like their stuff over much of the stuff Intel is pumping out

Yeah, well you can see where my sympathies are.
Take a look at what's in my x86 box (and for that matter my AROS box uses a 2,7GHz single core A64).