Well....... mmmmm let me think...... MagicMac is a very nice proggie.... but at the end of the day, you realize that you are using a Mac with an emulator!!! I don't like that idea.... it's just not Atari.
Atari clones??? Well... they're very possible to build..... but the problem here is not how to build them: the problem is the MONEY. How are you going to produce an Atari clone without money??? And how do you get that money? easy: selling many clones. And are you sure that you're going to sell sufficient clones to get some money and produce more? That's the big problem with all the projects with the aim of producing an Atari clone.
I wanted to buy a Hades and my heart almost stopped when I knew the price of just the mainboard.
So, as I said many times.... I believe on:
1. full emulation (Aranym project acting as a full operating system would be a nice idea)
2. modification of similar machines.
For example, would it be possible to create a hardware kit wich transform your 68k Mac into a real Atari???