I saw this comment from the Developer on the DMD2 F/Book page. Time will tell, but it does not fill me with a lot of confidence about road-going use.
Today we will update DMD2 with a very simple route calculator. Not the version we have planned but instead, for now, a simple, mostly for utility, that can be used for connecting you to map points, way-points, poi, and track points.
Our final route planner will be mostly for adventure and off-road. DMD2 will never be intended to replace road navigation apps, since that is not our focus, our planner and navigator will never be focused on road, city, instructions, but instead, it will be mostly for providing tools for off-road and adventure planning.