While preparing for a recent camping trip to Seal Rocks, I spent a bit of time trying to find an iPad car mount. I soon discovered that all the backseat mounts are intended for a single viewer, which was not going to go down well with our two backseat travellers.
Eventually I came across the Coulview, a headrest mount for iPad and iPad 2 which pivots to let you angle your device so that multiple rear passengers can see it.
The mount attaches to the headrest posts with two screws and is very easy to get in place. It holds the iPad very securely and doesn’t move, even over rough terrain. The only downside is if you keep the mount in the car without an iPad in it, the mounting clips stick out and can catch on clothing, so I’d recommend always removing the mount when not in use.