All that legal mumbojumbo your mom warned you about.

Source Code Licensing

SIMO’s source code is distributed under the GPL 2.0 License.

Website Licensing

The look and feel, and even part of the content on SIMO's website originates from the Camino website which is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 license. SIMO’s website is licensed under the same license.