By routing I do mean where you put in the starting point, waypoints (or vias) and ending point. Plan the route, so you can see what streets are taken and see the overview on a map, then down load it to a GPS receiver. The Magellan 2200T allows me to plot the route be putting in the starting and finish points and any POI's but it doesn't let me see the whole trip in overview. For example, a trip we made yesterday - it took us one route - but on Streets and Trips I was able to plan different route with better stops, because I could see the whole picture.
I guess I want the flexibility of a laptop map and GPS in an auto GPS unit. Is there such a creature?