Explore a panel discussion on Spatial User Interfaces (SUI) featuring experts Florian Daiber, Kyle Johnsen, Robert W. Lindeman, and Sriram Subramanian at the ACM Symposium on Spatial User Interaction. Delve into the current state of SUI technologies, focusing on field studies and practical applications outside laboratory settings. Gain insights on multidisciplinary aspects, application areas, and emerging challenges in the field. Learn about various topics including spatial data, spatial search, flexible gestures, and natural language integration. Discover how SUI technologies are evolving and their potential impact on future human-computer interactions.