It seems they really want to build some separation from the Kindle line of e-readers. They mentioned this on the stage during the product release by saying their e-reader only had 1 button, 37 less then the kindle.
Today Barnes and Noble issued an email to me from their press department giving some comparisons regarding the battery life.
With up to two months on a single charge, the All-New NOOK has the longest-battery life in the industry and superior battery performance to Kindle 3. In our side-by-side tests, under the exact same conditions, continuous use of the device resulted in more than two times Kindle’s battery life. While reading at one page a minute, the All-New NOOK battery lasts for 150 hours where the Kindle battery, using the same page-turn rate, lasts for only 56 hours (both with Wi-Fi off). We’ve also done a continuous page turn test and at one page turn per second, the All-New NOOK offers more than 25,000 continuous page turns on a single charge.