There was a lovely piece on the BBC World Service about it yesterday. They reckon that the referendum isn't binding, merely an opinion poll.
Begs the question as to whether Templehof could become a small London City-type airport. Whatever, Tegel needs sorting out. I've flown into there a number of times and, for a capital city, the airport really is a bit pokey.
Tegel's also in the wrong place and it takes forever to get into the city centre (no, wait, that sounds like Heathrow....).
Tough call, mind. A greater Schonefeld - long overdue - and a Nazi-era City airport. That's what I'd like to see. Although German sentiment in dealing with the Nazi past is still a very sticky and emotive issue.