I bought the Nook Tablet last weekend, thinking it could replace my Nook Classic and my Netbook for travel, since I'm pretty much going to be on the road every weekend in February and March for work - to be honest, I think it's a great little device, it may just not be for me.
I didn't root it or hack it, but I did install Launcher Pro and I now have it running the regular Android screen from that Launcher. It's like having a larger version of my Atrix (without the annoying work emails because I refused to set up my corporate email

), and playing Mahjong and Scrabble have been fun, as has surfing the web and checking out my usual sites. It's nice and light and thin, and as an eReader, I love the shape and size. I downloaded the Android version of my home media server, so I've been able to stream home media to it. The video is crisp and clear, although it lags a little, which I think is the video...a preview of Mob Wives got out of sync (don't judge me!) and it ended up beeping the wrong words, so I was falling over with laughter at the preview (pretty sure they added the beeps in post-production with the video because my husband and I heard every F word once the video got out of sync

).
The Nook Tablet itself is a nifty little device, but I'm not quite sure that it's for me because I'm not sure that I'm a tablet person. I know there's an issue with copy/paste (which is one of the main frustrations if I want to reply to a thread on a message board), although the keyboard is amazingly sensitive and easy to type on, but when it comes down to it, I feel like I want my Nook Classic to read my books, and I want my Netbook to surf the web. I am also a tech geek, and didn't think that the Tablet not being an open-source Android tablet would annoy me, but to be honest...it kinda does.
I'm going to give it another day or two to decide. For an eReader Tablet, I think it's pretty well-done and would meet the needs of a lot of people. I just want to be able to do more than it's capable of doing, and that's me, that's not the Tablet.
I don't like the way that the new Nook Touch feels (we got one for my mom for Christmas since she loves my Classic, and I've been setting it up for her, so I've been able to try it out before I wrap it up), so I hope my Classic lasts quite awhile. As far as a tablet, this may not be the one for me, but that doesn't mean it's wrong for anyone else - I think it's just a matter of personal preference.