Open Source CubeSat Projects
/Fans of open-source amatuer / ham radio sotfware may be interested in downloading Librecube - a piece of software allowing Hams to freely modify, produce, improve, and share CubeSat products and projects.
They are hosted by LibreCube, a non-profit initiative that has the objective to promote open source CubeSat design and foster collaboration among the CubeSat community.
Download - http://www.librecube.net