Researchers at the University of Illinois at Urbana-Champaign have developed an iPhone accessory that turns it into a mobile biosensor - or what's better known to sci-fi geeks and Star Trek fans as a medical tricorder.Related StoriesForget getting a new tablet, build a DIY Etch A Sketch for your (inner) kidWhat features will iPad 5 have?iPhone 6 rumour rollup: iPhone delays derail 4G rollouts, flexible Gori
