With iParking you will never forget where you left the car parked. The application saves the position where you parked the car and calculate a route to it.
Save your position is as easy as opening the application and touching the pin button. When you want to return to your car push the route button and you will see a route to the car.
You can also save the position you left your car at the mall through the shopping car button.
If you tend to forget until you pay your ticket at the parking meter you can set an alarm to notify you when it finish.
Also you can mail the coordinates of where to parked your car.
The program is designed for iPhone to iPhone, so you can use it on both devices without paying twice.