Tiago Serra
Entrepeneur, Engineer and Designer at SenseBloom. xDA hackerspace founder. Interaction Designer and HCI guy. Usability and User Experience diligent, Inventor and overall mad scientist.

Victor Martins
Victor Martins, also known as V*. Is a generative-art lover and an interactive media + realtime computer graphics developer. Has been involved with the underground digital art movement called Demoscene, since the early 90's. His work ranges from realtime visual effects to simulation of real life phenomena from a different point of view.
Groundspines Graffiti is a laser based digital graffiti flowering system controlled by computer vision and prepared to be projected in buildings.