Any chance of adding some diagnostic capability. Things like number of satellites tracked/used and 2d/3d would be very helpful. Much more is available when you get away from NMEA.

Hmm, but where to show that on the screen. I'm not even using altitude anywhere, so the 2d/3d difference shouldn't be that big of a deal (except for precision). Right now, if there is no fix, the bearing pointer becomes a little diamond shape, whenever we have a fix it should look like a pointer.