Trails - GPS Tracker is designed to tell you where you've been, more than for where you're going like some other GPS apps for the iPhone 3G and 3GS.
1GPS navigator
iPhone and iPad apps tagged "GPS navigator."
Navigon AG's MobileNavigator Lost Me There for a While
Navigon MobileNavigator - One of the big deals about Apple’s iPhone 3G and 3GS iPhones are their built-in GPS. With the right app, any 3G flavor can become a fully-featured GPS unit. Make the app cheap enough, and the iPhone as a way-finder becomes a better option than the real thing.
