Although Internet-of-Things (IoT) applications and services have their roots in ideas that are decades old, their increasingly widespread deployments have made them a hot topic these days. Frequent topics of discussion and hype, they are causing both excitement and concern. As many as 50B networked devices are envisioned by 2020, and proponents of IoTs see a world where embedded sensing and control techniques help vehicle traffic flow more smoothly, where fine-grained sensing helps electric grids operate efficiently, where environmental sensing and data analysis facilitates better use of natural resources like water, and where personalized health monitoring helps individuals improve their quality of life. On the other hand, properly addressing a range of concerns around security and privacy will play a major role in IoT's adoption and success. My talk will discuss key technology and policy challenges for future IoT applications and devices, and will outline particular technical issues for researchers to address. Overall, I will be drawing both from technical experiences and trends, as well as from perspectives gained during a year’s leave in Washington, DC doing technology policy within the U. S. Department of State.