Recently I blogged about exporting to html5 from InDesign using the in5 plugin. Looking through the various options that this plug-in gave me was an output option to something called the Baker framework.
This was not something I had come across before, so I thought I would look it up and see what it was all about. The Baker framework is an html5 ebook framework, specifically designed for publishing ebooks on iOS devices, using open web standards. Since these devices use the webkit rendering engine you can add audio, video, and animations within your ebook pages. Leveraging CSS3 you can change your layout in a responsive way, so that your ebook works in portrait or landscape modes. The framework itself is open source, using the BSD license.