Sponsors: ~48 identified, tiered Gold/Silver/Bronze/Media/Community Supporter (top tier $2,000); named sponsors include Microsoft, Red Hat, Mozilla, the Xen Project, the EFF, and Pogo Linux.
Attendees: 1,150 badges reported on day one, 1,380 total registered, ~1,500 by the organizers' final estimate — per a contemporary Slashdot report, the best-sourced attendance figure found for any year before 2015.
Volunteers: Roughly 120 student volunteers from BTC's CNET program — the only pre-2015 year with a real volunteer count. Longtime organizer Jakob Perry has volunteered since age 15, back at the very first fest in 2000.
Highlights: Sessions on IPv6, UEFI (“The Great Satan and You”), and Mobile Chrome Apps; an after-party with a 9-foot Tesla coil at the American Museum of Radio & Electricity — the same venue used in 2008, suggesting a recurring tradition.
Sources: Slashdot, Network World.