Car Finder is a navigation application that lets you mark exactly where your car is. Close the application and everything saves. When you’re ready to find your car, open it up, and follow the directions. You can also look at it on the map so you can find out where it is in relation to where you are.
This application works better if you have the 3G iPhone with the GPS chip. . .it still works for the iPod Touch but it’s much harder to pull off with WiFi triangulation.