Screen Saver, automatic battles and stats

I think it would be great to allow GSB to run in a screen saver mode. During this mode it would randomly select challenges and select some of your saved setups and fight. These results would be saved and when you wanted you could look to see how you fared, and against who. You could also replay battles that took place, or at least view the other sets of ships you went up against. This could also lead to global rankings ect.