I keep trying to think of a scenario where I would want to park my car while standing next to it. I guess an automatic parking app could come in handy for tight fits that offer little door room. 9to5Mac discovered a video of auto-parts supplier Valeo parking a car using nothing but an iPhone.
At the end of the video, a Valeo representative stands outside a Volkswagen Sharan and parks it using an iPhone (:55 mark). The Automatic Park4U system doesn't control steering, that's left to several sensors that can parallel park with just 22 inches of clearance.
The Park4U technology is already used by Ford, Audi, Volkswagen, and Lincoln, but this is the first time I've seen it used with an iPhone. There is also version for parking your car while still being inside the vehicle.