MANILA, Philippines – Miami Heat superstar LeBron James is giving up his Twitter and smartphone privileges just for the NBA playoffs. His last tweet, posted last April 21, said “Zero Dark Thirty-6 activated, I’m gone!” James also quit Twitter last year, when the Miami Heat finished as the NBA champions. In the 2012 playoffs, instead of fiddling with his phone in the locker room, James was often seen engrossed in books before games. ANC Alerts, ANC, April 25, 2013