This is the next level following last year's wildly successful introduction to Headless Drupal at BADCamp, SandCamp, and LA http://2013.badcamp.net/sessions/knock-out-drupal-themer-pure-html-front...

This time, we'll start with a Drupal 7 site powered by KnockbackJS, and show how easy it is to upgrade to Backdrop or Drupal 8, without making any changes at all to the presentation layer.