In a serious challenge to Amazon's latest Kindle moves and Apple iPad, Barnes & Noble has introduced the two newest tablets in the NOOK family of e-readers: NOOK HD ($199) and NOOK HD+ ($269). The New York Times sees B&N positioning the first HD Nook tablets as "iPad Lite," and call the retailer's new "video service for the Nook color devices similar to the iTunes store and includes movies and TV series from Disney, Viacom and Warner Brothers."

According to B&N's press materials, NOOK HD is "the lightest and highest resolution 7-inch HD tablet ever. NOOK HD+ is the lightest Full HD tablet with a brilliant 9-inch HD display that magazine and movie lovers will adore. Enjoy incredible reading and entertainment like never seen before – all starting at just $199."

They're available for pre-order at nook.com and in-store on Nov. 1st; AP took a look at how they stack up here.

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