Hi Everbody,
yes we are going OpenSource…but stop: Not Completey! As part of our effort to spread the Oxygen API, we started an Open Source implementation of a .NET based Client Library. Right now it’s on alpha stage, but we will continue to work on it and make it production stable!
Community contribution is, as always, welcome 
You can find some info and the link to the sources here: http://wiki.oxygennext.com/index.php/Oxygen_.Net_Client_Library
We are also looking forward to our users contributing Open Source Client Libraries for their desired platform like PHP or Ruby. If you like to do so and need help, get in touch with us!
So long,
Matthias