Free software is sometimes taxed with being derivative, merely copying what exists in the world of proprietary code. This is obviously ridiculous, given that the World Wide Web, not exactly unoriginal, was released as free software. Still, it's always good to see new kinds of programs emerging as open source, and here's another one:
Sophie is software for writing and reading rich media documents in a networked environment.
Sophie’s goal is to open up the world of multimedia authoring to a wide range of people and institutions and in so doing to redefine the notion of a book or “academic paper” to include both rich media and mechanisms for reader feedback and conversation in dynamic margins.
Version 1.0 is available for download now. This version runs on Mac, Windows and Linux operating systems.