Hi I have a Nook Tablet model BNT400 Software ver. 2.0.2 I purchased off criagslist that I cannot register because I don't know the previous owners information. Now the Nook Tablet is useless to me. I was wondering if I root the Nook Tablet will I be able to use it in any market or does it still needs to be registered with B&N. As you can tell I don't know much about rooting although I do run a computer repair shop. I just need to will rooting this device make it useful. Thanks