Using the iPhone OS, a Belgian man managed to make a wonderfully sounding guitar. Drums and background music can also be heard from the guitar, which makes him a pretty good garage band. Using multiple touch screen phones, he strums the chord he’d like to use and continues to play his “banjo”. Besides using the iPhone OS, a battery-powered speaker and some good old duct tape to keep it all together, he also uses two Android devices, two Windows Mobile devices and one iPod Touch. The app he used is called iShred and just some regular Guitar apps by Frontierdesign. iShred is an app for the iPhone which…