Pierpaolo, aka yrz, got involved in a number of opensource projects,
among them it's worth to remember mod_protection, jabber SMS and
He spent some years as a researcher for Hitachi Europe, Vrije University of Amsterdam...
Chris Hand is an interaction designer specialising in physical computing, hacking and prototyping, and a co-founder and co-curator of This happened Edinburgh (Scotland). Chris lectures in design at Edinburgh Napier University, where he leads the MDes Interaction Design programme.