If you've not received it yet, don't worry - it's speeding its way through the air, headed to your Nook with delicious promises of apps, games and a web browser amongst other little gifts.
Wi-Fi is improved along with the new features, so you'll be able to surf the net on hotspots that require a log-in via the web browser - which is also new. It beggars belief as to why Nook owners would still walk into Barnes & Noble store, but if you connect to their hotspot you'll be able to read an ebook for free, for an hour - with newspapers and mags coming along later for 20 minutes' use each day. Could be a nice activity while slurping down a coffee in their in-store cafe.
An updated design for the home screen arranges apps nicely by the sounds of it, and speed - which has always been an issue with the Nook - is improved, with faster page turns and a general zippiness all 'round.