This looks like possibly the perfect iPhone mount for the Model S (if you have an iPhone 5). Too bad it doesn't come in black. I bet a little spray plasti-dip could fix that...
"Unlike the short, flaccid charging cables on the market, you can bend Trunk vertical to charge on the wall, bend it the other way and use GPS in the car, or straighten it out and put it in a pocket when you're on the move.
Why do you need all that cord? With Trunk, there is no wrapping, no tangling -- no mess."