Yesterday a friend set up my Nook to be an android tablet. He has been overcome with power and is now hacking anything he can get his hands on. (You should see a hacked toaster. It makes great waffles now.)
But as to the Nook reader, I like the app better! The page turn function is more animated PLUS you can turn the Nook sideways and the text will turn. The regular Nook wouldn’t do that.
Getting far more functionality out of the Nook with the Android hack is a great discovery to this point.