When Trevor Moran walks into his local Apple store in Temecula, Calif., the 12-year-old isn't there to shop. He's there to dance - and then post it online. And he's not the only one. WSJ's Yukari ...
How confident a dancer are you? Two Left Feet or Ballroom Legend? Me, I tend toward the former, but if you’re the same then this International Dance Day, Apple may have something to suit.