The Snappgrip is a mountable handgrip that adds physical camera controls to ... - Wired

The Snappgrip is a mountable handgrip that adds physical camera controls to ...
Wired
For $70, you get an iPhone-mountable handgrip that snaps onto a special case that comes included in the package. The Micro USB-rechargeable grip communicates with the handset via Bluetooth, letting you use physical controls for the camera while it's ...