Hello,
since I received some inquiries about that via e-mail, here's a quick pre-notification:
The public part of the LibreOffice Conference 2012 will take place
October 17th to 19th, 2012
in Berlin, Germany
More details on the schedule, the call for papers, the venue, sponsorhip options and additional events will be published soon in an official announcement. In addition to the three public days, one internal day for community meetings will be scheduled as well, most likely on October 20th.
Florian