It looks great. There is an html version of this site as well linked at the bottom.
I thought the whole idea behind jquery was that it was unobtrusive, and degrades gracefully, so you didn't need multiple versions of sites like this. Then again, if you make single page sites with nice jquery effects like this, do you end up being less bookmarkable, search engine friendly, and efficient bandwidth wise, and end up needing a html only backup, like this site has? Chris