When the user hovers on a commit, the bounds gets displayed on the map (if the map is set).  There is an issue right now the way it's set up.  If not all of the features are pulled down, only the bounds of those features that were pulled down will be highlighted.  Also doesn't account for removed features yet.

When the user clicks on a commit, a list of the added/modified/removed features gets displayed.

When the user clicks on one of those features in the list, the map zooms to that feature on the map