I still owe you that feedback from me. I'll be the first buyer once the 100k version is in, so I can get it incorporated into roadrunner and get off road situational awareness at the highest level, and save having to buy and integrate topo 7 as an interim solution.
is it easy to add additional states? Once I start using the roverpc, I'll have more interface feedback to give you. in the meantime, if I have moving map with displayed coordinates (in a variety of datums to include mgrs) and altitude, and the means to enter a goto waypoint with navigation course arrow (with distance remaining), that checks the block. I could care less about 3D rendering as a priority.