Commercially available optical see-through displays are just around the corner. Applications will be very much on the rise. With the years of research effort, a rich array of micro-sized sensors, the advent of low cost RGBD cameras and advances in computer vision technology, what are the major research issues for developing user interactions for augmented reality systems? Technology advances and commercialization are now allowing many more researchers to investigate augmented reality without needing the expertise/effort to develop their own low-level technology (hardware, software, and UI techniques). There is still much research required to determine the most effective ways to use this technology for a variety of tasks. Today there is not even a single interaction technique specific to AR that is widely accepted by a mass audience. This panel will explore what issues have been solved and (if there are any) those left to be investigated for user interfaces for augmented reality.