Like you I've been chatting with Sailtimer guys and thought it might be good to coordinate our efforts/pool resources. I should have my new unit next month some time. I've also started a dialog with the developer of Sailracer App which at the moment seems like the best racing app since the dropping of Android support by iRegatta
Sailtimer seems quite motivated to get other apps integrated and even mentioned a possible group buy discount for OpenCPN users if it can be organised.
Can share my discussions with them but probably easier via direct email
Thank you very much! That's pretty much the same thing that I am slowly working towards. I'm glad that it can be done. I have the GX2150 and Standard Horizon's GPS connected right now, but my next step is to figure out exactly how to connect both to RJ45 cables and the box. After that, get the bluetooth transmitters. Lots to learn. Thanks again.