The court decided today that Prop 8, defining marriage as being between a man and a woman, has to stand, but said it could not be applied retroactively and left standing the 18,100 same-sex marriages that happened before it's passage. However it looks like the devil is in the details.
Go look at the Daily Kos for details:
http://www.dailykos.com/storyonly/2009/5/26/735571/-Read-page-36.-They-just-cut-Prop-8-to-the-bone.