I've never played with another Android device to compare, but I think that the Nook is actually somewhere in-between. From what I can tell, the Nook runs a cus

I've never played with another Android device to compare, but I think that the Nook is actually somewhere in-between. From what I can tell, the Nook runs a customized version of Android. The most important customizations are the home screen (the desktop that can only show Nook books purchased from BN), the overall UI, and the fact that you can't install apps on it without rooting it.