Und noch ein CfP:

The Chaos Communication Congress the annual four-day conference organized by the Chaos Computer Club (CCC) in Berlin, Germany. First held in 1984, it has since established itself as “The European Hacker Conference” attracting a diverse audience of thousands of hackers, scientists, artists, and utopists from all around the world.
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The deadline for submission is October 11th, 2011 Midnight (23:59) UTC. Notification of acceptance will be sent by e-mail on November 20th, 2011 the latest. However, you may very well get your notification earlier than that if needed.
– October 11th, 2011 (Midnight UTC) Submission due
– November 20th, 2011 (Midnight UTC) Final notification of acceptance (or earlier)
– December 27th – 30th, 2011 Chaos Communication Congress