NavPRO is an all purpose navigation application. It can be used by tourists to mark the location of their hotel, to mark a route back, or to mark the location of the great restaurant they found. It can be used by fishermen to mark the location where the fish were biting, by cyclists or runners to map their runs. It features user selectable auto pin placement spaced at every mile to every 10 miles (or kilometers if using in metric mode) It has a large overlay display (current speed, average, and max speed, and distance) that can be removed at the press of a button. It allows the user to place a marker pin anywhere by pressing the mark button. The pins can be selected and a descriptive note added to each one. In addition, a descriptive label can be added to each trip in the list of saved trips. There is a pop up help display, and on the fly conversion from metric to english. It can be interrupted or terminated and resume without losing data.