What I find interesting - TARPN seems to have figured out how to implement forward error correction (FEC) to AX.25 packets.
Packet's greatest downfall has always been lack of robustness - one error and the packet is trash. This could change.
Another thing is they have figured out how to use mobile radios that claim to support 9600 baud packet (but never did very well) by reducing the speed in half to 4800 baud.
I plan to build and test their NinoTNC with a couple of Yaesu FT-2600 2m radios that fall into the above mentioned category.
73
Mike? N0QBH