Chris Mayer, an independent developer, has announced the release of three complete Xcode projects designed for authors wanting to publish books for the iPhone and iPad. The projects -- Simple Book App for iPhone, Universal Simple Book App for iPhone and iPad, and Advanced Book App for iPhone -- are ready-made apps that only require content to be loaded in HTML format. Pages can be created in any HTML editor, and use a variety of fonts and styles, as well as images. The Advanced Book App includes several features not found in Simple, and is currently selling for $27 v