NEW YORK — Barnes & Noble is rolling out two new versions of its Nook tablet with sleek new hardware and a sharper high-definition screen. The bookseller’s move heightens the already intense tablet wars heading into the holiday season.
Barnes & Noble said Wednesday that its new Nook HD will come in two sizes, one with a 7-inch screen (measured diagonally), starting at $199, and one with a new 9-inch diagonal screen, called the Nook HD+, starting at $269.




