Actually, what's the problem with starting with something simple? At least to get moral and support up and flowing. Vaporware rarely brings out the masses in interest.

I envision the basics, as mentioned, speed, direction, coordinates. I also envision a very rudimentary single waypoint routing ... enter your coordinates for your target and the empeg will point you in the right direction (complete with little arrow), miles (kilometers) to target, time of arrival given current speed.

Most of this is in GPSd right?

Greg