Castiv Guitar Sidekick
The Castiv Guitar Sidekick clamps your smartphone or media player to the strings at your guitar's headstock, allowing you to view videos, tabs and apps at a sensible angle.
Be wary of really heavy devices, though - the weight of the device on one of our guitars was just enough to lift the high E string out of the nut. Still, in all but that instance the Sidekick worked exactly as expected.
A handy little gadget.
Heavy devices can lift out your strings!
Would make a useful addition to anyone with a growing collection of guitar apps.