@Van_M:
With today's storage capacities, it would make more sense just to bundle the ROMs, OS components and disk images (or heck, just a memory snapshot of the loaded game) per game in one blob. With appropriate modification's to UAE's loader if that's what they'll use.
This way they'd avoid giving out the ROM images 'free,' something they seem so concerned about, and maintain licensing and associated payments (source of revenue) as a requirement for any other developers who care to jump onboard.
Of course, this would also make some sense from a business perspective, so who knows if they'd actually do it that way.