I recently turned my iPhone/Pad picture book app, LULA'S BREW into a Nook Book (available through Barnes & Noble). It was an interesting experiment which I documented in detail at e is for book in a two part post. If you think it's something you might like to do - go have a read! It's also now available as a .pdf through the Illustrated Section and will be available on Kindle in a few days. Click here for all buying options.