Summary | The arrival in mid-2007 of what we now regard as the
smartphone was that rarest of moments in technology, a true,
full-on revolution. The center of that revolution was the upper
end of the U.S. consumer market. Now, it's bringing billions of
people in the developing world online for the first time,
creating some startling challenges and opportunities, a few of ...
blogs.wsj.com | 16 November 2015