Wanted a large screen GPS for the coach but couldn't get past the cost. Got a Samsung Galaxy Tablet for Christmas and loaded GPS CoPilot app. Just waiting for warmer weather to try out. So far has worked out pretty well in the car. Always like multitasking stuff in the coach.
Also I programed a route in to the tablet that goes under the 11' 8" bridge in Durham and the app routed me around the bridge when I had height restriction turned. When I turned the restriction off it routed me under the bridge.
If you want to test the bridge is at 202 S Gregson St Durham, NC 27701 plus has a
Web Site.