So what is it? iTunes for magazines? Maybe Hulu for periodicals? How about Piano Media for American titles? Tivo for print? In the hurly-burly of digital content innovation and monetization, it’s hard to figure out what things are, so we try to find apt comparisons. With the new Next Issue digital newsstand, let’s think Netflix or Pandora or Spotify as the closest cousins. Next Issue, the offspring of five prosperous parents (Time Inc., Conde Nast, Hearst, Meredith, and News Corp.), launched last night what I think will be a model-changing product for publishers. In short, the Next Issue kiosk idea is transformative — though we’ll have to see how quickly customers take to its unknown brand.