Want to see unread within a single group

Having the ability view Unread within a single group would be tremendously helpful:

1. Not all groups have equal importance to me
2. Some groups get more new content than others
3. ...i had another one but it's left me....

Might be as simple as exposing some filters on http://groups.drupal.org/unread although having the link to unread the list of my groups would cut down on clicks/processing.