Barnes & Noble today unveiled its new Nook Tablet, which comes preloaded with apps from Netflix, Hulu Plus and Pandora. The boost in entertainment options compared with previous versions signals the company’s intention to compete in the space against the likes of Amazon’s Kindle Fire and Apple’s iPad. And it is throwing down the gauntlet just in time for the holiday buying season: Nook Tablet is set to begin selling around November 17 for $249. Billed as an update to its e-reader Nook Color, the new incarnation has a 7-inch screen, Web browsing and email in addition to “access to the world’s largest digital bookstore via Wi-Fi.” It plans to offer Flixster and UltraViolet soon. The device has 16 gigabytes of storage and a battery life that will enable 11.5 hours of reading time or nine hours of watching videos in a single charge. Barnes & Noble also said today that it is lowering the price of its Nook Simple Touch (to $99) and Nook Color ($199).