Johno02 wrote:
GPS chips are good to tell where you are at the time, but unless you are using a gps device or a computer of some type with internal storage, internet data service is needed to download the actual maps. GPS location coordinates are vital, but without a actual map, it does'n tell whether you are in New York or California.
I would assume that everyone knows this but I could be wrong. Even Google Maps does not need an internet connection while driving but you must be able to download the trip first to use the routing option.
It's better to have internet access available (even sporadically) with Google Maps as you will be updated about the traffic (or lack thereof) ahead and what possible alternate routes are available.