It doesn't really matter what these companies think or do. Both OSs will be running on both motherboards fairly soon after they're released. If the companies don't provide the software or hardware "unbundled," then they'll miss out on some sales. But their cooperation is irrelevant to what people end up doing with these things.
Even at the height of Apple's undocumented-hardware days, people had not only Linux but also QNX (verified) and probably BeOS (in-house, unofficially) running on its g3s. It's just the nature of the market. So it's less a matter of "shall we let these OSs on our hardware?" as "shall we sanction these OSs on our hardware and get some sales from it?"
The OS company can either go the route of guaranteeing compatibility (Amiga/Hyperion's present course) or just sell shrinkwrapped boxes with a disclaimer about use on untested boards.
The trouble is, this approach would totally cut Eyetech out of the equation. Eyetech was instrumental at one point, but now has become redundant with Teron boards available from other sources. But to protect Eyetech's position, Amiga and Hyperion have gone along with the dongle scheme. This was probably a contractual condition of the initial agreement of the three companies to produce a PPC port and hardware to run it on.
Genesi also has things to protect; with an operating system of its own to promote, they're probably in no hurry to do anything that will assist Amiga. Maybe after the dust settles following the market introduction of both groups' products, it'll be more clear what the possibilities are, if any, for cooperation for mutual benefit. But for now, everybody's thinking their own path is the best one.
-- gary_c
