I recently started carrying a tablet on tour. As others have stated the tablet really is not piratical for turn by turn navigation. So what I do is to tuck it in my handlebar bag. I use it at night for getting on line and to plan the route for the next day. Should I come across a road that looks interesting, I will pull it out and check out the route. It also comes in handy for looking for places to eat or places to stay along the way.