[Donnageddon]

Amazon says this:

New Touch Experience - EasyReach
Amazon invented a new type of touch experience that eliminates the fatigue caused by continuously swiping to turn the page, and that allows readers to hold Kindle with either hand while still turning pages comfortably. With EasyReach, Kindle Touch users can effortlessly page forward in a book or a periodical while holding the device with either hand. Tapping on most of the screen area will page forward, the most common action done when reading; tapping in a narrow area near the left edge of the device turns to the previous page; and tapping on the top part of the screen brings up the toolbars for further options. This is another way that Kindle helps readers get lost in the author's world.