The number of smartphones, tablets and other network-connected gadgets will outnumber humans by the end of the year. Perhaps more significantly, faster and more powerful mobile devices hitting the market are producing and consuming content at unprecedented levels. Global mobile data grew 70 percent in 2012, according to a recent report from Cisco, which makes much of the gear that runs the Internet. Yet the capacity of the world's networking infrastructure is finite, leaving many to wonder when we will reach the upper limit and what we will do when that happens.
