Expect no glare from Sony's new reader. By Christine M. Varner December 31, 2006 After years of enduring eyestrain from illuminated displays, fans of eBooks can stop squinting. Electronic ink, or E Ink, has hit the mainstream, and manufacturers are launching affordable portable reading devices that use it. Sony's Reader ($350; www.sony.com) is first out of the gate with its crisp 6-inch E Ink display, which delivers a high-contrast, paper-quality look with no glare. The paperback-size device holds up to 80 titles; you can add a memory card if that's not enough. Amazon and Panasonic are said to have similar readers in the works, although they haven't issued details. One thing is sure: With the popularity of eBooks, Sony won't have this shelf to itself for long.