Ordered this a while back and havent really used it much. Finally took it on a trail ride today. Ride Report and video to follow. The adjustable jaws grab the phone and then the butterfly looking rubberband thingy wraps around each corner of the phone securing it is place. I was nervous installing it since everything is plastic and my phone is my lifeline but everything worked great. The trail was pretty rocky with lots of bumps and bangs and it held without issue.
Bottom line is that it worked great and held the phone very well. Check out the amazon reviews.
http://www.amazon.com/gp/product/B01...ilpage_o01_s01
The first picture is a screen capture from a video taken by the new sports cam. See it at this link.
http://www.chinariders.net/showthread.php?t=15713