Proposition 8 is unconstitutional - but don't start ringing the wedding bells yet.

In a sweeping 136-page decision, U.S. District Court Chief Judge Vaughn Walker ruled Wednesday that California's ban on same-sex marriage violates the United States Constitution. The successful federal challenge was brought by attorneys Theodore Olson and David Boies, in a case known as Perry v. Schwarzenegger.

Court watchers at the Federal Building scrambled to download the decision as it was released Wednesday afternoon shortly before 2 p.m., reading the text aloud from their mobile devices to an elated crowd.

Walker was not swayed by the defendants during the trial that took place in January and June.

"Proposition 8 fails to advance any rational basis in singling out gay men and lesbians for denial of a marriage license," Walker wrote. "California has no interest in discriminating against gay men and lesbians Proposition 8 prevents California from fulfilling its constitutional obligation."