The 12th GENI Engineering Conference (GEC12), hosted by the University of Missouri, Kansas City, will take place November 2-4, 2011, in Kansas City, Missouri. The GEC is the GENI Project Office’s (GPO) regular open working meeting where researchers, developers, industrial & international partners, and the GPO meet to advance infrastructure planning and prototyping for the GENI project. Furthermore, the GEC focuses on how to design and build a suite of infrastructure that can best inspire and support creative research. In Spiral 4, the focus of the GEC will emphasize expanding and strengthening the Meso-scale infrastructure and supporting experimental use of GENI. Conference registration is open to all.