Yes. The talk is definitely in English and most participants will speak English with one another.

@U0281QDFE1X official language is English yeah. Are you thinking of proposing a talk? We'd love to hear your ideas

I'm asking mainly because I will be moving near Berlin in few months and I was wondering if it's worth 2h drive just for the meetup 😄

We're now going to do a meetup once a month. You're very welcome to join us next time (will be announced via http://meetup.com)