I think AmigaNG nailed it in that it all comes down to the "what makes an Amiga an Amiga" question. Personally, I fall closer to the opposite end of the spectrum: to me, the Amiga is about an elegant hardware architecture that was designed alongside and tightly integrated with an elegant system-software architecture, running on a very nice, assembler-friendly CPU. While I don't disagree that AmigaOS is a fine piece of software (though I haven't used 4+ and can't really speak for that,) it's just one of the components - removing
any of them significantly diminishes the appeal for me. That's why Linux/Amix on the Amiga is more of a "oh, look at that" novelty, PPC accelerators hold no interest for me, and stuff like AROS on a PC is kind of boring.
That's not to say that I begrudge devotees of any of the above their own little triumphs, but it does make me wonder, if the software is so plainly what matters, why bother retaining
any hardware compatibility, especially going to all the bother of designing a new system around an old processor?
Heres a prediction, no matter how strong your personal attachment to your legacy hardware is and no matter how deeply your feelings run, soon we will be fully capable of running all your software and a host of BETTER software on modern platforms that are truly competitive. Then your arguements for Amiga forever will look as valid as Apple II fiorever. Life evolves. Get with the program.
And this is what I
really don't understand. If you feel like this about legacy hardware, why are you essentially proposing to build what amounts to a different kind of legacy hardware? The oldschool 68k processors are out of production, stop at 32-bit data bus width, and don't go above 100MHz. If your attitude towards legacy hardware is "get over it and move on," why go to all this trouble? Why not just go with an existing board for a modern architecture and save yourself time, money, and trouble?
(And no, I won't "get with the program," thanks. Some of us value the full Amiga architecture more than being "truly competitive.")