Here, you'll find the ability to view map overlays from multiple carriers, along with the ability to zoom into a street-level view.

ENGADGET

When the car is put into reverse, the GPS navigator will switch from map to rear-view mode, enabling drivers to view what is below the rear window.

ENGADGET: Wireless Back-Up Camera for the Magellan RoadMate checks your six

In four clicks on an iPad it's possible to change the screen from a view of a world map to a graph of toothpaste prices in India and a sales comparison that shows local brands are gaining share.

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