Hi!
I know there was some discussion about a full views-integration at http://drupal.org/node/782622
As a non programmer-guy I wonder how difficult that would be, as it already has the views look-and-feel. Anyway besides the invite-link mentioned in the other post, some more info in the table could be usefull, like "join-date" or integration with "og user roles". All of that could be achieved with views.
In the end this could become the total-control member-administration-panel for OG.
Any further development on this is most welcome. Thank you so far!