With Amazon on its second iteration of Kindle, you knew brick and mortar stalwarts Barnes & Noble weren't going to just let them take over the electronic book market. Hence, Nook ($260). Built atop Android and featuring dual screens — one e-Ink, one color touch screen — Nook aims to present books and their covers to you in a whole new, but familiar, way. Like the Kindle, it features built-in 3G wireless networking, storage for up to 1,500 books, and a sleeker design than Amazon's front-keyboard gadget. The icing on the cake? There are thousands of books available for free, making the two and some change price tag seem that much friendlier.