GPS Players Aim to Navigate the Mobile Market

Even though Apple has yet to show off turn-by-turn directions on the GPS-enabled iPhone, navigation is one of the fastest-growing categories of mobile devices apps. As comScore recently noted, map use on cell phones in the U.S. during the three-month period ended May 31 was up 82 percent over the same period last year. The demand is particularly high for step-by-step pedestrian navigation.