Here's a handy iPhone application that's set to launch tomorrow when the iPhone 3G drops around the world: G-park is a very simple program. When you park your car, you hit "park me" and it drops a GPS flag on your current location. When you can't remember where you parked, you just hit "where did I park?" and Google maps gives you turn-by-turn directions back to your car.
Read the full article: iPhone app helps you find your parked car