I’ve got a green light from our Office of Technology Development to distribute PyRx under Open Source BSD License. For users, this means that you are free to use PyRx for academic as well as commercial purposes. For potential developers, this means that you can now contribute code to PyRx. I’ve created a project for PyRx at http://sourceforge.net/projects/pyrx and you are welcome to join the project. Visit https://sourceforge.net/projects/pyrx/develop for more information.