When I was doing an interview with John Resig for the Open Web Podcast, he mentioned that the redesign of jQuery.com had a lot of people talking, and it seems like people have strong feelings about the Rock Star for whatever reason.
Ignoring the style, the redesign is more than just that:
The entirety of the site has a new layout. With drastically improved multi-layer navigation and a standardized sidebar it should become much easier to navigate the individual portions of the site.
You should probably wear a hard hat while exploring the interior pages – font sizes, spacing, and colors are all in need of tweaking, which will be handled over the upcoming week (it’s fun working against Trac, WordPress, Drupal, and Mediawiki simultaneously).