Better late than never, right? Only a couple of weeks after its rival Kindle, the NOOK app is finally ready to join the new iPad's pixel-packed party. While the main feature is obviously its Retina display compatibility, version 3.1.3 also brings an improved Highlight feature for books, the ability to read in one or two columns when in landscape mode and the enigmatic bug fixes. The refreshed app is up for grabs now, and you can snag it directly from your iPad or via the source link below.