From the web site;
On November 11th, 11.11.11, across the planet, documentary filmmakers, students, and other inspired citizens will record the human experience over a 24-hour period and contribute their voice to the second annual global day of media creation called One Day on Earth. Together, we will create a shared archive and a film.
You do need to register if you are interested in making a contribution to the effort.
Too hip, gotta go.