Hello,
according to our road map (http://genode.org/about/road-map), the upcoming Genode version 15.05 will be accompanied with comprehensive documentation. The work on this documentation is in full swing and can be tracked at the corresponding Git repository:
https://github.com/nfeske/genode-manual
A snapshot of the current version is available as PDF at:
http://genode.org/files/53bcb8e33fe6602fed25edc3c7b922c5/manual-2015-03-06.p...
So far, the work on the following chapters is completed already:
3. Architecture 4. Components 6. System configuration 8. Under the hood
I would greatly appreciate feedback from the community about those chapters - be it in the form of minor spelling or grammar fixes, suggestions for additional topics you wish to see covered, hints about misleading paragraphs, or any other concerns that you may have.
Cheers Norman