I've been using the Kensington car mount for about a week and it is flawless. I know others have complained that the arm shakes - hey, what would you expect an extension arm to do? We live in a flat area, so it is fine and besides, I don't spend all my time looking at my phone while driving, and that is why I can write this review today. There is a 3/8ths of an inch thick cushion holding your device in place which makes it easy for your phone or pod to be quickly released. I'm sure the mount can be used for many other devices, not just an iphone or pod. It seems to open up enough to hold a razzleberry phone.