Agree, truly amazing talk.
You can follow their progress here: http://www.selfevidentproject.com.
The idea is that they ...
"create an installation with all 10,000 portraits on the lawn in front of The Washington Monument, likely in 2016 before the next presidential election.
There will be a large photo book, organised by people's self-assigned percentage, showing the face of the full spectrum of human sexuality.
Once iO has shot 10,000 portraits, the project will become open source, allowing participants to submit their own photos and stories online, thus creating an ever-expanding database."
Also, once they do the DC installation, they will "tour the exhibition of the original faces, as well as their mini documentary series, creating some festival-like awareness/ education days."