Addicted to your iOS virtual instrument apps? Then the Fingerist ($150) is for you. This unique accessory is kinda-sorta shaped like a guitar, and features a built-in speaker, guitar-style volume knob, a fold-out Dock connector, a full-size line out for connection to a guitar amp, an included guitar strap, and up to six hours of playtime from three AA batteries. Finding a group of buddies willing to jam out with such a Fingerist-wielding dork may be difficult, however.