So, first things first. Arieso, the ouftit that conducted this here study, is a company that makes ends meet by "optimizing mobile networks." In other words, there's just a bit of motivation to find results such as these in studies like this. Now that we've got that cleared up, you may be interested in knowing that Apple's iPhone 4S users are consuming around "twice as much data as the previous iPhone model, and even more than iPad tablets due to increasing use of online services like the virtual personal assistant Siri."
Of course, this relates only to those sampled, but there's no question that th
