Good Gear Guide
Sygic Mobile Maps 2009: the first turn-by-turn iPh...
Sygic claims Mobile Maps 2009 includes more than 600,000 points of interest, including content from Yellow Pages and UBD, as well as speed and red light alerts. It also offers instant rerouting, lane assistance, speed restrictions and a number of other safety alerts.
Sygic Mobile Maps 2009: the first turn-by-turn iPhone navigation app