This app is great. I've been waiting for something like this.

I hope they iterate on the staging/commit UI because, as is, I'm still going to use GitX to preview and selectively stage things. Some suggestions:

* Get rid of expand/collapse and checkmark pattern. Let me see two lists of files -- changed and staged. If I click on one, show the changes.

* Staging by chunk & line.

* Squashing with the previous commit.