The organizing committee has tallied the votes. The attendee-selected best paper of PLOS 2009 is: Filet-o-Fish: Practical and Dependable Domain-Specific Languages for OS Development Pierre-Evariste Dagand (ENS Cachan-Bretagne), Andrew Baumann, and Timothy Roscoe (ETH Zurich) Congratulations! Eric, Andreas, Gilles, and Olaf The PLOS 2009 Organizing Committee