Microsoft let a few more details slip about the upcoming Fall Dashboard update today. Soon you'll be able to see and compare your friend's friend lists from the dash:

Microsoft is making it even easier to expand your Friends network on Xbox LIVE, starting with the Fall Dashboard Update on December 4th. Members will now be able to check out the friends lists of fellow Xbox LIVE members right from the Dashboard. With this new feature, members can find old friends or connect with new ones within the community of more than 8 million people on Xbox LIVE around the globe and send messages and game invites, as well as compare games and Achievements.

Worried that your girlfriend might see that you still "frag bitches" with your ex in Halo 3? You can preemptively adjust your privacy settings now at xbox.com/fof. Just be careful if you see that she's done the same.