I think it would be interesting to show some type of recognition on the main page for the "developer of the week", i.e. the developer who received the most votes (not reputation since there's a 200 per day cap) for a week. While no mortal man can possibly catch up with Jon Skeet's reputation; they may be able to top him over the period of a week.
Could make the game a bit more interesting.
Update (Aug 23 '11)
I can't believe this idea got picked up (http://stackoverflow.com/users) after everyone gave me crap for it :P Now there's a week, month, year and all-time reputation tab. The idea is the same just the location is different.