Easily attached and adjusted, just takes a minute or so to install. Can be easily rotated out of field of view.
I use mine for backup GPS (or primary GPS), for taking pictures and videos, listening to music via Bluetooth, etc.. With the remote controller (not included) also available on this site, you can start/stop video filming without touching the iphone. Also can start/stop music, adjust volume, mute, and more. Using facetime, you can reverse and let your family/friends see what your seeing.