Originally Posted by
Marcus_Ti
What carrier do you have, what kind of coverage does said have, and where are you touring, and what is the carrier's coverage in that area?
Those are the big problems with using a smartphone for navigation, after battery life and weather-resistance. There are large swaths of land in the USA where not even Verizon has 3G....at which point, barring pre-cached maps, you're hosed for smartphone-dependent navigation.
If you are relying on cell network access, you're doing it wrong.
There are numerous apps that let you download maps to the phone (so you don't need a network).
Even if you prefer using an app that requires network access, you should have offline maps.