I've "completed" 4 full "square blocks" now, I believe. I'm slogging through them in Potlatch, but there are lots of things that aren't clear. I think I've got one ways, but I have no clue how to do turn restrictions, stop signs or traffic lights, so while the map stuff seems to be coming (slowly), the nav pieces aren't complete. I might have to switch to the local tool to get the full effect.