Sony and Plastic Logic offer touch screens -- Sony on both the Sony Reader Touch and the Sony Daily Edition -- and Amazon's Kindles offer buttons. The Kindle 2 has a six-inch diagonal screen and the DX a 9.7-inch screen. Plastic Logic's reader will be larger than 10 inches -- a behemoth, for sure. Sony splits the difference on a number of fronts with its Reader Daily Edition (pictured) screen: touch and seven inches. It seems the least cumbersome, with the most options -- provided you like touch screen, which is a matter of preference.