An Augmented Reality application for exploring the themes of Mobile and the Urban Dweller in barcelona on February 24th 2013. In conjunction with IoT Barcelona, Augmented Technologies, Perey Research and Consulting, Ajuntament de Barcelona, Zolertia and Marc Pous.The themes of the February 24 City WalkShop are mobile devices (“mobility”) and the urban dweller.- How does the citizen or visitor use city sensors and data on a mobile device?- How does the mobile device user become a sensor in the city?- Who develops and pays for city services we can access with our mobile devices?- What are the issues/solutions (connectivity, security real time data)?