User tests: Successful: Unsuccessful:
getComponentsWithConfig does not work for custom components at the moment because the column 'name' is used in the database query instead of column 'element'.
Here is the tracker item for that:
http://joomlacode.org/gf/project/joomla/tracker/?action=TrackerItemEdit&tracker_item_id=29307
This was merged, so I'm closing it.