This seems like a cool idea but i'm bewildered by one thing. Why is this a menu item? And does it have hotkeys?

Because, for better or worse, my menu bar is essentially full, and I save and manipulate my code and repositories via my keyboard, not my mouse (well that's mostly true. I still browse my git repos using GitX).

The workflow ideas seem worth trying, but the interface isn't something I can get with (although i will cop to not having any good ideas on how to improve this. I wonder what a quicksilver-like workflow would be like).