Barnes & Noble has officially unveiled its new "Nook" e-book reader today, and it's shaping up to be quite the contender for Amazon's Kindle. The Nook features a dual-screen display, which is comprised of a 6" E-ink screen and a color capacitive touchscreen for navigation.

It is powered by Google's Android OS, backed by AT&T's 3G network, and supports Wi-Fi -- though, it will only connect to Barnes and Noble stores at launch at a price of $259, and it will ship in late November.