Quote:
Originally Posted by strra
you're only half right. those apps do use the built-in GPS but they download the maps from the internet. that's what renders them unusable without signal. i don't know of any free apps that use a built-in map, but i have tomtom and it's wonderful
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oh and I guess since the TomTom and Garmin suites come with all the maps preloaded that makes them completely independent of being in the service area.