Everyone's let it happen at some point -- that moment where we're desperately trying to use our smartphones in one hand while juggling groceries or coffee in the other. There'll be no way to recover those social graces, but six researchers at the University of Calgary have developed a software technique, Fat Thumb, that should at least keep the contortions and dropped phones to a minimum. As the name implies, it's all based around pressure: a light touch performs the
