Samsung has yet again made our jaws drop with its latest prototype, the Youm flexible OLED display. It is packed with a lot of tricks up its sleeve, with the company even showcasing a video containing the future grandkids of current Galaxy phablets. Display prototypes of a folding tablet (yes the screen also folds into two), a rolling tablet, and a bendable phone made attendees of the conference drool as soon as they were unveiled.