nano SIM at Munich airport?
 

Thanks in advance to everyone here, other threads have been immensely helpful in planning my trip to Germany. I'll be bringing my iPhone 6 and would like to pick up a PAYG nano SIM--ideally at the airport if at all possible.

Has there been any progress in the availability of nano SIMs in recent months, or am I best suited going to a cellular provider (e.g. Vodafone) during business hours to get set up?