wars have certainly heated up with the recent release of IC based transmitters by the other three suppliers.
Since Ray now has WiFi as well I guess the other 2 will follow this lead when they are release a new iteration of their products.
Opening the Ray and Furuno radars up by writing a plugin is of course dependent on a volunteer that buys a radar/MFD combo and starts reverse engineering. Doable, but I guess the OpenCPN
devs with an itch to scratch have already committed to Garmin
. Personally I'm more than happy to help someone along who wants to do Ray or Furuno, and in anticipation of that I've reworked the code base of the Navico
plugin so that this is easier than it used to be, but I'm not optimistic that someone will actually do this. Certainly I won't be doing this as I have plenty of open source (and paying) work already.
I don't think there is any real pressure on the manufacturers to start creating a common protocol, or to adopt an open protocol. Signal K isn't perfect for high bandwidth binary data either.