This operating system has not had all the attention it deserved, so it seems almost disappeared.
Recently, however, the CP/M community has been very active in the recovery of this OS, begun from Emmanuel Roche who recover and retyped documentation.
Mario Viara contributed with a port of TurboDOS 1.2 on Udo's z80pack emulator.
The great news however, went on the work of Per Frejvall. He has a copy of TurboDOS 1.41 and ported it on simh/AltairZ80 environment...
Read the news on this hot topic.