Wednesday this week (May 21), we'll have the first ownCloud Hacktisch meetup at C-base in Berlin. It is planned to meet every third Wednesday of the month to spend time on improving ownCloud: hacking, translating, finding bugs and so on.
The meeting is open for everybody and of course you should bring your laptop! It starts at 19:00 at C-Base, Rungestraße 20 in Berlin. You can RSVP at meetup.com/owncloud-berlin.
Besides a laptop, I suggest you bring a good mood and a few euro's to buy a bottle of club Mate.
See you there!