Licencing

BB1 is free `jelloware' under the GPL. Refer to http://www.gnu.org/copyleft/gpl.html for details. In a nutshell, you are allowed to take the design and modify it. However, you must make the modified version available for others to change, much like I allow you to modify mine.

Note that the GPL does not prohibit you from making and selling PCBs based on this design. You only have to keep my copyright notice in the documentation of the PCB, and make the design available to anyone who wishes to use or modify it.