reMarkable on Monday will begin shipping what might best be described as an "untablet" -- a device that is, essentially, an electronic piece of paper. The company is proud of its paper tablet's simplicity, boasting that no other tablet has fewer functionalities. reMarkable users cannot install apps, watch videos or take photos. What they can do is read, write and sketch on a paper-like surface. reMarkable is about 7x10 inches and a quarter-inch thick. It weighs in at .77 pounds. It has no glass parts and is virtually unbreakable.