Here's as close to an official response that I've seen publicly: http://www.quora.com/Why-is-GitHub-for-Mac-not-open-sourced/answer/Justin-Spahr-Summers?srid=3z

Here's as close to an official response that I've seen publicly: http://www.quora.com/Why-is-GitHub-for-Mac-not-open-sourced/answer/Justin-Spahr-Summers?srid=3zh0&share=1 http://www.quora.com/Why-is-GitHub-for-Mac-not-open-sourced/...