Built for a presentation on mobile development for MobileCampBrussels, The Phone Guitar is an amalgam of five smartphones, three mobile platforms, three programing languages, two third-party apps, a custom cross-platform sequencer app, a stick, some battery powered speakers, and plenty of duct tape.

Besides being able to cobble together impromptu heterogeneous digital instruments on the fly, cross-platform mobile hacker and part-time smartphone rock god Steffest can also play. Not since Super Diamond have I seen a more compelling rendition of Cracklin Rosie.