The single most impressive feature of Sygic Mobile Maps US is its non-map interface, which takes pains to function like a full-fledged GPS device and make good use of the iPhone’s screen. Like Navigon, Sygic lets the map and its entire interface shift into horizontal or vertical orientation as you prefer, but Sygic uses large, colorful icons, a combination of bold text, and a nice keyboard to make its screens look sharp. It offers a choice of…
