In 2009, the United States crossed a digital Rubicon: For the first time, the amount of data sent with mobile devices exceeded the sum of transmitted voice data. … Even as the number of wireless connections increased from 286 million in 2009 to 303 million in 2010, voice usage on those phones decreased. And our calls are getting shorter. While in 2003 the average local mobile phone call lasted a leisurely three minutes, by 2010 it had been trimmed to a terse one minute and 47 seconds.