Barnes & Noble on Tuesday unveiled its all new NOOK eBook reader, and to say it’s an improvement over the previous-generation model is an understatement. This new version replaces the older greyscale model, not the still-young NOOK color, and it features a major improvement we probably all saw coming… a touchscreen. The eReader sports an on-screen keyboard and it also allows readers to look up words or take notes with simple taps on the beautiful E Ink display. The new NOOK features just one button compared to the Kindle’s 38, which obviously simplifies the user experience significantly. More importantly, the new NOOK can last up to two months on a single charge — double the battery life of Amazon’s Kindle. Other nifty features include a new proprietary dissolve transition that takes readers from one page to the next, and social media integration that allows users to share recommendations via Twitter, Facebook and more. Of course the new eReader also features Wi-Fi connectivity and owners can enjoy free hotspot access at all Barnes & Noble stores as well as every AT&T hotspot across the country. The new NOOK will retail for $139.99 when it becomes available on June 10th from Barnes & Noble, Best Buy and more. Pre-orders are available immediately.