when you are using Handheldcontact, you may also want to use googlemaps for the routing/navigation.
but if your carier is not covering the area, where you are planing to travel you may find this to costy. (rooming)
there is a easy trick that helps you to store the google maps on your mobile device, so you will not have to download the map while Rooming
before you start traveling go in googlemaps to the area that you are visiting, open the search field, and enter ok maps, this will download the Map to your mobile device and you can call/see google maps with disabled dataconnection.