Kate Ho spoke at MEX in September 2012 on simultaneous multi-person user interfaces (SMUIs), a topic she pioneered at MEX back in December 2010. As Managing Director of agency Interface3, her work ranges from large, table top interfaces used by multiple people at the same time, to tablet games designed to encourage collaborative play between parents and children. Her talk examines how the need to design for several users interacting with a digital experience at the same time requires a new way of thinking.