I put the image in my last post on aday.org.
I thought I’d give it a go. They say that the participants retain copyright of the image which should be the default condition for any photographer taking part in anything at all. The idea is to document what happened around the world on one day – 15th Mat 2012. The best shots will go into a book in Finland or something. If you want to have you work retained for history you only have a few days left.