Is This Ereader Real or Just a Concept? Is This Gadget For Sale or Just a Concept? May 29 2010 • By POPSUGAR Tech 3 1 This is one ereader that would be even easier to transport than my Kindle! The eRoll features a rollable, flexible screen that, when not in use, rolls easily into a protective tube. It's a great idea, but is it for sale?