Upton was careful enough to use his iPhone to post the tweets, but made the error of using the office wi-fi, which led to his unmasking.
For years, he has neglected the print encyclopedias, he said in an interview, and now prefers to use his iPhone to look up facts quickly.
Mike Lapchick, an AT&T customer in Chicago, said that he tended to use his iPhone mostly for e-mail, and that he would probably see his data bill drop in half to $15.
He used to use his iPhone, but he finds the iPad "especially good for luminous subjects or for things like the difference between ceramic and wood or a glass tea cup next to a ceramic mug.
A doctor can use his iPhone, for example, to monitor an expectant mother's contractions and the fetal heartbeat.Bigger companies are encouraging smaller ones, hoping to benefit from their ideas.
One was when a work experience teenager came in for the day and offered to use his iPhone to film a post-match interview with someone in the squad for the in-house TV channel, Sky Blues Player.
