@Floid
All that's really needed is a good IP stack, and if Roadshow isn't backportable...
Roadshow was developed for 68k in the first place, and the 68k version has been ready for over a year. It would have been released long ago if Olaf hadn't promised Hyperion that he would not release the 68k version until after AOS4 is released. Considering the ridiculous Miami situation and the shortcomings of Genesis, that decision has cost him a whole bunch of sales.
Note: The above refers to the stack itself, and not to the AOS4 specific GUI Hyperion were adding to it.