DeforaOS can be found at 30C3 [1], the ongoing 30th annual CCC congress in Hamburg, Germany. The official assembly table [2] is shared with the Gentoo crowd [3], and unfortunately not manned at all times - but do not hesitate and try to show up!

[1] https://events.ccc.de/congress/2013/wiki/Main_Page
[2] https://events.ccc.de/congress/2013/wiki/Assembly:DeforaOS
[3] http://www.gentoo.org/