I just traded an ipod for an NC. so far its cool but im not sure what os i exactly have. It loads straight to the droid OS WITHOUT an sd card in it. I have market place and i can watch youtube n what not its just alot of programs in market say my device isnt compatible.. not compatible with the nook app?? wtf?? I want to maximize my nook to be a tablet, anyone have any ideas on what to do to figure out which os i have and if i should change it? thanks