you will find the infodesk in the hackcenter.
There you can
- register on arrival
- Get drinks, like club mate and others
- ask anything (what's the weather for today?)
- register for lightning talks and other activities
- get a stamp for your hackerpassport (and buy a hackerpassport)
- and more...
On arrival you will get here your goodie bag with t-shirt and a whole lotta more thingies.