I don’t know when Apple’s iPhone will officially launch in Germany (I know a few people who bought one in the US to get their hands on it early). Apparently, an official ship date hasn’t been set yet.
The good thing about *camps, though, is you can start organizing one even when you don’t have a clear date yet: iPhoneDevCampGermany
Via Gernot: iPhoneDevCamp Germany
And via Franz: iPhoneDevCamp German