That means marriage licenses can be issued beginning June 17!
http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2008/06/04/BA8V1137HS.DTL&tsp=1
Unfortunately, I've also discovered that they don't quite know what to do about registered domestic partners who decide to marry each other.
ETAThanks to
http://www.equalityforall.com/courtcasefaqs#anchor13
Now, we had a big ol' ceremony with our families in 2005, so we're just planning a quickie civil ceremony (maybe right before a BASFA meeting) to license things as a marriage.