CTIA has released the latest data from its semi-annual wireless industry survey, it seems that the continued growth of LTE networks and corresponding strong sales for smartphones in the US have lead to mobile broadband usage more than doubling over the last year. The most recent CTIA data, obtained by All Things D, shows that US carriers handled 1.16 trillion megabytes of data between July 2011 and June 2012, up 104 percent from the 568 billion megabytes used between July 2010 and June 2011. During the timeframe of this huge increase, we've seen Verizon's LTE network grow by leaps and bounds, AT&T and Sprint launch true LTE networks of their own, and dominating performances from both Apple and Samsung — and that's without taking into account the iPhone 5 and Galaxy S III, both of which launched outside this survey's timeframe.

CTIA's data backs this up, as well: as of June, 130.8 million smartphones and "wireless PDAs" were in use, up 37 percent from the prior year. Additionally, there were another 21.6 tablets, laptops, and modems connecting to cellular networks in the US, up 42 percent from the year before. Of course, the downside to all of this usage is the ever-present concern of network congestion — Verizon and AT&T's new LTE networks have been pretty consistently excellent, but we all remember what happened when iPhone users flooded AT&T's 3G network just a few years ago.