The proliferation of networked embedded devices such as wireless sensors ushers in an entirely new class of computing platforms. We need new ways to organize and program them. Unlike existing platforms, systems such as sensor networks are decentralized, embedded in the physical world, and interact with people. In this talk, Feng Zhao of Microsoft Research argues that the existing node-centric programming of embedded devices is inadequate and unable to scale up. New service architectures, inter-operation protocols, and programming models are needed that are resource-aware and resource-efficient across heterogeneous devices that can range from extremely limited sensor motes to more powerful servers. From the Series:CSE Colloquia - 2006