Engadget found this slick little gem over the weekend for your jailbroken iPhone.

It’s a virtual guitar (a lot like Jam Sessions if you’ve ever played that, actually — reaffirming my thought that the iPhone is the best handheld gaming device ever made), where you can put your fingers over the strings at the top, and then strum on the bottom to play

notes and chords. Not only can you play your own songs, but you can even play along with any stored music you have on your iPhone, too. And every song, I tell you, can be improved by throwing in another guitar solo.

Pocketguitar for the iPhone and iPod touch is available on the ModMyiFone.com Community Sources packing in Installer under Toys. Load it up and strum away.