About this 3D model

Ever tried to record a video, but you need to move the camera and have both hands free? Here is the solution. Also could be used for action shots if you do not have a Gopro I do not have a Iphone 4 yet, but Have modeled this design off of a Iphone 4 3D model and this design http://www.thingiverse.com/thing:22250 Please tell me if you have other phone you want this idea modeled with. I need the Thickness & width.