I like the design a lot. I find the fixed scrolling thing on the left disorienting. You've got a lot of extra room in the bar at the top; can you make the login box, the register link, and/pr the navbar links bigger?

It is stolen from Yahoo! Sports? http://sports.yahoo.com/nba

Design looks great to me! You've nailed the sports theme! Signed up for beta.

PS: Another cool Rails startup!

I'll send you an invite.

I don't mind the feedback button scrolling, after all it's a beta site and it makes good sense to have the Feedback button jump out at people otherwise they'll never do it.