I think this is a question the majority of users are looking for on this website. If I have no wifi and data, and I don't have a dataplan with my carrier at all, what is the best gps program to get? MGmaps does not have voice, or exit warning which I thing is a huge let down. What programs would you all recommend, hopefully free,but even paid and popular that would fit the above criteria
I do not believe there is such a program available for BB's. Garmin may have had a version where the maps were on an sd card but I have not read about it in quite a while. You can check their site.
Amaze needs an initial data connection to calculate the route. Once you have that, it doesn't use data (unless you are in map view) while displaying arrows (and staying on the calculated course). If you go off course, then it will use data again to recalculate. Nav4All does the same thing.
Of course, if you have the map displayed, it uses data to build the maps.