First of all, great demo and great coverage on the Singularity project.
I have a question now. I am a brazilian developer and I noticed a sign on the wall written in portuguese (it said "Respeite o turista" which means "Respect the tourist"). So, who brought that sign? I read on the Singurarity page that the team had an intern from Campinas - SP - Brazil. Was he the one that placed that sign there?
Anyways, great work.