eLens is a mobile phone application that allows citizens to interact with their urban environment. Users can tag the city and post messages in physical places. Examples of its functions include civic participation in governmental decision making, social networking and in the cultural life or the emergence of ad-hoc local communities. Simply by pointing their mobile device to a building or any other tagged location, users can access to the eLens network and leave or retrieve information in form of text, voice, image or movie. eLens augments the physical environment through location based information.
In spring 2006, ELens was brought to high school students at IES-SEP Lacetania (Manresa, Catalunya / Spain) who tested the tool and explored its potential when tagging their city and generating stories along architectural tourist routes. eLens was conceived and developed over two academic semesters, in collaboration and with the kind support of Generalitat de Catalunya, Telefonica, Motorola and Cisco.