I'm Henk Hoff. I'm one of the board members of the OSM Foundation. I will be in Athens this coming week(end) to speak at a GIS conference this Friday.
Since I am in Athens, I would be very interested to meet the Greek OSM community. If there are OSM-ers in Athens this Saturday, I'm all for some kind of meet-up in a bar / cafe on Saturday afternoon and/or evening. Let's have a few drinks and chat about .... well ... whatever we decide to talk about :-)
I have not really planned anything for that day, so I'm very flexible.
Are there any people interested?