Run, Event and Detector Response WG Work plan 2010 1] Parallel navigation - Finalize and benchmark - Co-work with Geometry and Generic Processes WGs 2] Command-based scoring - Full revision of scorers to accept user-defined unit - Finalize cylindrical mesh types - Introduce spherical mesh 3] Prototype multi-core extension of Geant4 - Deliver beta-version of multi-thread prototype.