Jimmy Wales, founder of Wikipedia, has said the press reports about Wikipedia Germany being shut down by a German court are false and that the Wikimedia Foundation has had no contact with any Berlin courts.
The German version of Wikipedia is at http://de.wikipedia.org/
The http://www.wikipedia.de/ domain belongs to the German club of Wikipedia users.
The German Wikipedia club was briefly ordered by the court not to point people to the main German wikipedia site, the http://de.wikipedia.org/ but the main site was not affected.
Update: Andrés has further details at his blog, Technollama. As has Wikipedia itself.