While information on Barnes & Noble's new e-book reader, the Nook, has been trickling out for several days, the company unveiled the new $259 device on its Web site Tuesday a few hours before the official launch event in New York. As previously reported, the Nook, billed as the first Android-powered e-book reader, features not only a 6-inch E-ink screen but a color touch … [Read more...] about Is Barnes & Noble’s Nook a Kindle killer?