Ubuntu Developer Summit Quantal Quetzal (UDS-Q) at Oakland Marriott Center City, Oakland, California, USA - 07th May - 11th May 2012 [cc by-sa 2012 Sean Sosik-Hamor]

See http://www.pixoulphotography.com/ for more photos by Sean Sosik-Hamor or check out the photos in their original gallery to buy prints:

http://photos.pixoulphotography.com/…/UDS-Q…/23155798_KrM3PW