Go figure — one thing that’s not ailing in this economy is something that many, on the surface, would assume one could live without. As mobile data usage rises, a great deal of that comes from the average smartphone. In a new report from The New York Times, we’re forced to think about just how much of a necessity these ultra-smart cellphones have become. Just five years ago, these things were simple luxuries. Now, they are practically needed for super-efficient businesspeople. One example of just how useful