Hello guys! Sorry for resurrecting this...
I have found a Bonito supercom and it interface.
I am looking forward to make it work
I just plugged the cartridge to see if it boots up correctly
I still have to figure out how is it to make tx, as I can only see an audio connection. I assume there should be at least a tx/rx toggle on the radio side in order the alternate with the audio in and signal out to the transceviver.