On the Model II/16, their was a very well done version of CP/M called Aton CP/M. It used some bank switching to give a TPA of about 52k. I loved it over TRSDOS althou I still used TRSDOS a lot. Once Tandy (and MS finally released Xenix for the 16, I dumped TRSDOS completely even thou Xenix...
I agree completely and I would love to play around with eZ80 SBC's and related stuff. Zilog is a sad story in microcomputer history. Especially since it was pushed aside by Intel's crappy chip designs (btw, I am one of those that hate Intel's mneumonics prefering Zilog's. Oh and lower case...
At one time a rumor was that IMS(AI) stood for I am S, a belief system where they would hold closed session seminars forcing participants to pee themselves and be proud of it (BS I'm sure, but makes a funny story). Their corprate HQ was in San Leandro, Ca on wicks blvd (which much later became...