Publisher Penguin Books this week demonstrated a series of possible iPad books, presenting the concepts at an event in London, England. A number of titles may, in fact, bypass the iBookstore for the App Store, in order to enable interactivity. A children's book for instance could permit coloring drawings while reading, and still other titles could enable live chats, or augmented reality functions like displaying constellations over the real night sky. A book on human anatomy might allow people to zoom in on individual body parts and load