Barnes & Noble's new $139 Nook is simple, touch-friendly

Just a month after releasing a major update to the Nook Color, Barnes & Noble announced today a smaller, more simplified version of the original black-and-white Nook. At $139, the device will compete better with the Amazon Kindle, which retails for the same price with its Wi-Fi only version, and the just-released $129 touch-enabled Kobo e-reader.