The idea that the iPad is a magical piece of glass is so Apple-esque that I’d developed a false memory of Steve Jobs describing it that way when he unveiled the first one in 2010. He didn’t, and I’m not positive just when the company embraced the metaphor. It dates at least to the press release for 2014’s iPad Air 2 and has stuck around ever since.So, recently, when I spoke with Apple senior VP of worldwide marketing Greg Joswiak and senior VP of hardware engineering John Ternus about the compan...