Their are to many problems at the moment for me.
1. Pressing options while book is open goes to the library. As I have disabled toolbar I can't access options at all now.
2. In library options back button does not work.
3. New book is not being added to the the current book in the library
4. If you press menu by mistake you have to select one of the options no way to go back without selecting an option
Btw I am using it on my nook touch