There is neat stuff to be found, though, most obviously in the form of a few screenshots that, while they still don't show any new or new-to-Brawl characters, do show off a day/night cycle. Also, the list of composers contributing to the game is massive-- a total who's-who of Japanese game music. Some of the composers, we're sure, are only credited for having created the music from Smash characters' original games. But Jun Fukuda and Masafumi Takada from Grasshopper Manufacture are on the list, and that is really exciting.
The website promises updates every weekday, so don't let the somewhat underwhelming first day put you off. Keep checking the site for the inevitable character announcements and control scheme explanations!
[Thanks, Tigeron Starfire!]