The iPhone (left) and Palm Pre (right) both come with Google Maps, which lets you easily navigate and find your location. Although both use Google Maps, the Pre's direction-by-direction map capability is a bit easier to use than the iPhone's. On the iPhone, you get a new screen when you move to the next turn in your journey, which can make you lose context of the route; the Pre scrolls the map instead, so you keep that context. Both devices let developers integrate location capabilities in apps, such as restaurant finders, using a combination of GPS, cell-tower triangulation, and Wi-Fi mapping. The new iPhone 3G S -- but not other models -- has a compass that lets maps orient themselves more fluidly as you move.
