Wow, that looks like nice software.
I have been using OziExplorer (
Official OziExplorer Web Site - GPS Mapping Software for Tracking and Navigation. Supports Garmin, Magellan, Lowrance and GPS) for many years and while it has quite a few more features that OpenCPN, I am going to give it a try.
I really like how OpenCPN handles BSB charts and it also looks like it will run really well with the Vesper XB-8000 transponder for both GPS & AIS over WiFi. I am planning to buy the Vesper AIS transponder in next months boat budget.
p.s. no relationship with OziExplorer apart from being a long term user.