We've known for a while that the new iPhone 3G would have the magic of GPS, but we didn't fully realize how that power might benefit car owners. While we've seen a few semi-cool, car-centric applications available for the device -- from mpg calculators to maintenance reminders -- this program could prove the most useful for the forgetful among us.

After parking your car at a crowded shopping mall, users of G-Park tell their iPhone where their car is. When they wrap up their shopping, the application will provide directions back to the car.

PosiMotion says their application will even work on the first-generation iPhone, though without the accuracy of GPS.

There's no word on when the application will be available or what it will cost, but avoiding the shame of wandering parking lots for hours looking for a tan Camry is worth any price.

[Source: Gizmodo via Gizmag]