Meatball surgery complete, it's now a working, full fledged USB Device. Won't work on a relatively current mac though, there's no Windows/Command Key. :-/

I'll have to try it with the OmniView KVM, hopefully it predates the "Windows Key" and will map something or other to the Command Key. If nothing else, I can use a PS2->PC adapter and use it with my old KeyStone PC->ADB adapter . . .

. . . or I could just pull out the unobtanium Paladin Prototype-Peripheral KBD/Trackball outta' mothballs and play with that some more! [] ]'>