SIOC Licensing
For open source projects:
If you are developing and distributing open source applications under the GPL version 2 License, then you are free to use SIOC under the GPL version 2 License
Comercial products using SIOC
For companies who want to use SIOC, and do not license and distribute their source code under the GPL version 2, Component X Software provides a Commercial License.
Please contact sales to enquire about commercial licensing.