Solar companies usually install solar panels on roofs but Elon Musk is planning to integrate photovoltaic material directly into a roof so it IS the roof.
http://understandsolar.com/solar-shingles/
Digital Rangers is an augmented reality application that uses object, location, outline, and image recognition to trigger indigenous stories on your phone in a hologram-like way at cultural places around the world. www.indigital.net.au
