The latest comScore (NASDAQ: SCOR) data gives us another reason to believe that one day laptops will be obsolete. It's not that we don't love our laptops. Sometimes they can be downright beautiful. But people really, really love the simplicity of those screen-swiping, finger-flicking devices known as tablets and smartphones. And according to comScore, an increasing number of consumers are using their mobile devices to shop online. Based on data from comScore's own Mobile Retail Advisor report, the company says that 38% of smartphone owners have used their phone to make a purchase at least once in the course of...