Earlier this year, comScore found that over half of all U.S. Internet users (142 million) owned a smartphone, and another 69 million owned a tablet. The increase correlates well with the time consumers spend online, which is up 86 percent between June 2010 and June 2013. For retail, mobile devices now play the starring role, with 55 percent of the time U.S. consumers spent on retail sites in June coming via a mobile device (44 percent on smartphones and 11 percent on tablets).
These are just a...