Get ready for Tim Cook’s riskiest move at Apple

People like to point out that Steve Jobs, remarkable as he was, didn’t actually invent the smartphone. Nor did he invent the home computer, the MP3 player or the tablet. What he did, of course, was create a breakthrough version of all of those technologies that people actually wanted to use — sending Apple Inc. on its way to becoming the $2.7 trillion juggernaut it is today.