 On August 12, 2012, the price of the Nook Color was reduced to US$149.On November 3, 2012, following the release of the Nook HD and Nook HD+, the price of the Nook Color was reduced to US$139.The 7-inch Nook Tablet, based on Android OS, with 16 GB of internal storage became available on November 17, 2011 for US$249.