Willem Velthoven, Michiel Gaasterland, Barbara, Steve Seager, arie van dam, Tsur Reshef at Social RFID Hacker Camp ’09 Share Facebook Twitter LinkedIn Pinterest E-mail With: Steve Seager, Barbara Revelli, Michiel Gaasterland, Tsur Reshef, arie van dam, Willem Velthoven Where was this made?: Social RFID Hacker Camp ’09