Currently, there are only few environments available that allow for testing public display applications on an urban scale in the wild. In the context of the UbiChallenge 2011 we developed two services in Oulu, Finland over the course of 6 months. Digifieds (derived from digital classified), is a digital public notice area that allows information to be created, posted and taken away from public displays, either directly or using a mobile phone. The FunSquare service is based on self-generative autopoiesic content assembled dynamically by matching real-time context streams with existing content fragments into localized “fun facts”.
During the evaluation we were able to gather valuable insights from observations, interviews, and a field trial with regard to content, privacy, and users’ motivations.