On September 11th Berlin has welcomed 300 developers, who came to brainstorm, code and meet-up at the second Facebook World HACK Day.
Our developers Rudy Vince and Marek Vavrečan were also in attendance and we managed to persuade them to write a blog post for you about it.
Here is Marek's reporting about the event:
The eight-hour Hackathon took place in Berlin's Café Moskau. During the event you could listen to talks from Facebook engineers, who walked you through the development of applications using Facebook Graph API on different platforms.