You may not want to be seen rocking one of these at your next gig, but if you've been trying to juggle your phone and guitar while using some of the endless number of apps out there, you might just want to consider this so-called Guitar Sidekick from Castiv. As you can see, there's not a whole lot to it -- just a bracket that attaches to the neck of your guitar, and an adjustable mechanism that will accommodate just about any smartphone (or even a PSP). No word on an iPad version just yet, but you can grab this one right now for $30.