I can confirm that QTH 0.1.4 is working with the Mobilinkd TNC3 and a Kenwood TMV-71A radio.
I created a Connection as a KISS TNC. in Mac OS i connected via bluetooth to the Mobilnkd TNC3 via blue tooth. Then the TNC shows up to QTH as a serial TNC.
In our area, Northern UT, there are a lot of mountain top digis, and I am receiving APRS traffic from 200 miles away via radio.
So far it appears to be working good. Will continue to test.
I did do a Beacon using the Beacon button on the UI and that appeared to work. I can see myself on APRS.fi.
Regards,
Kevin N7RXE
Logan, UT