Since a Nook app for Windows Phone 8 seems to be nowhere on the horizon, I have looked at some other reading apps that work on my Nokia 920. The Kindle app displays text and that is about it-- completely bare bones. The best I have found is Overdrive Media Console. Not only can I borrow library books but the reader itself has useful functions, such as a built-in dictionary and numerous fonts, colors and text options. It plays audio books too. Any recommendations for good reading apps?