First, the cube plugin is no longer constrained to four faces. Here it's a hexagon (click image to go to view options)
Also of interest is an configuration interface that Guy Lunardi has been advocating to include. I'm not sure whether it was included in beta 11 as just a test, or if it is now considered "in." It certainly makes a more friendly configuration interface compared to using gconf-editor, but it lacks some of the options.