I have also been working on a couple of tools to use Github within Pythonista. The first of which is gitter_search which allows you to explore Github users and repositiories. A second tool, gitter_pull, provides a mechanism to pull a particular Github project in to your Pythonista. I am still working on documenting and debugging all this but it can be found on Github at https://github.com/markhamilton1/Gitter.
Feedback is greatly appreciated. This should work in either Python 2 or 3.