For some reason I seem to have signed up for some paypal developer newsletter...
So they invited me to the Berlin part of this global event call the "BattleHack".
PayPal Battle Hack is a 10 City Hackathon series for devs to come test their skills and change the world. Bring your best ideas for developing apps for social good, find some team members onsite, and make something awesome.
The said to bring friends in the invitation email:
Come and create an app that helps to solve a local problem of Berlin. Fight bureaucracy, increase internationalization, or anything else. Just bring your team and when you win we will bring you to California to the World Finals!
Any ideas?