 The original Nook had a six-inch E-paper display and a separate, smaller color touchscreen that serves as the primary input device and was capable of Wi-Fi and AT&T 3G wireless connectivity.The original nook was followed in November 2010 by a color LCD device called the Nook Color, in June 2011 by the Nook Simple Touch, and in November 2011 and February 2012 by the Nook Tablet.On April 30, 2012, Barnes & Noble entered into a partnership with Microsoft that spun off the Nook and college businesses into a subsidiary.