In late August, Byonics started selling the fully assembled SMT version of the TinyTrak4 APRS tracker. I put in an order last week and received it on Friday. Since I was using a TinyTrak3Plus previously this was an easy swap. I have been messing with this over the past few weeks and have had a great amount of success. I am finding that the smartbeaconing is working a bit differently (less beacons on the same track with the same settings as the TT3+), but overall it is a drop in replacement. I'm looking forward to the addition of the digipeater to the tracker in the coming months. Here is a track of my morning commute across the Bay Bridge using the TinyTrak4 connected to a Duleo GPS and a Kenwood G707A installed in my truck.