San Franciso? This is what I found: http://animedestiny.silential.com/index.php
It looks really small though. I wanted to go, but I can't because of work. I'm like really pissed that I can't make it because there is also going to be this concert that I wanted to go the same day: http://www.animenewsnetwork.com/news/2010-10-11/n-california-concert-to-feature-anime-game-music