There will be two days of hacking on Symfony2 at the Symfony Live conference in San Francisco on February 5th/6th. Liip want's to make sure Europe doesn't miss out on the fun! Basically we will keep the Zurich office doors open both days from 10:00 to 18:00 (with a high likely hood of a bar crawl on Saturday) if there is interest.
Anyone is welcome to join, explore the Symfony2 source code and work on API review, adding tests and a few features here and there. For anyone who is interested in getting their feet wet with Symfony2 this is the next best thing to flying to San Francisco.
In terms of a accomodations we cannot make any promises, but we will try to look for people who can provide a bed to sleep in privately. Fill out the doodle as soon as possible to let us know if you come and if you need a place to crash. If there are any questions feel free to contact me via a comment here or by email.