As a first step to release the whole Zong! project under an open source license, I released the Xenoage Utils project under the MIT license today. I spent the last two days by cleaning up the project and separating it from the Zong! project, where it will now be included as a git submodule. Maybe it will also be useful for other projects, I especially recommend to have a look at the utils-pdlib project which includes persistent and functional data structures.
The next steps are to clean up the Zong! project itself, including the Editor, Webviewer and Android app, which were closed source so far. After that we will continue development on all modules.