Fitbit Leaderboard widget for Dashing, which uses the Fitgem gem to retrieve information from the Fitbit API. It displays the leaderboard of you and your friends. It calculates the top 5 (or less if you don't have more than 5 contacts in your list) of the past 7 days including today, so the ranking changes constantly.

To show your own statistics, checkout the Fitbit widget: http://dashing.challengepost.com/submissions/17071-fitbit