SpaceAlarm is a FREE application that allows you to save a GPS location and alert you via sound, vibration and visual notification when you arrive at your destination. It can serve you every day, dear friend for all your travels, appointments, reminders. It works in the BACKGROUND and uses a VIRTUAL SNOOZE if you leave the zone of alarm set point, and there falls a second time. It works with iphone GPS and cellular cell. You can save your points of interest by searching in a map, and SpaceAlarm will remind you when you are there!
Please note that:
Continued use of GPS running in the background can dramatically decrease battery life.