The nationalities of the speakers really show what a diverse community we are. USA, UK, Australia, Austria, Germany, Norway, one American who lives in Switzerland and Nadim Khemir, a.k.a. نديم ابن ﺤﻣﻮﺪﺓ الخمير. I can't recall where he's from, but he's the author of the really awesome Asciio software. It's an ASCII version of Visio.
At the 19:53 point, xwrn starts speaking (I just point this out for those who happen to know him).