The Furp ("Future of Urban Planning") project exists as a first step toward disseminating the Luminous Room project into the world at large. We are collaborating with MIT Professor Eran Ben-Joseph in using a customized version of the Urp system (see Luminous Room) in his Site and Urban Systems Planning class. The system has recently made its in-class debut, and is now undergoing intensive week-by-week modifications and refinements in response to what's being learned about its real-world usability. Our short-term goal is to transform Urp from a "proof-of-concept" system into a tool sufficiently convenient and facile to permit ongoing and casual use in a classroom. Longer-term goals include extrapolation from these class-centered experiments to a better understanding of which modalities and contexts are appropriate for broader applications for luminous-tangible interaction techniques.