No, not Bill Gates memory project. Christo's Central Park Gates.
Flickr and The Institute for the Future of the Book (is it me, or is there an institute for everything, other than the enrichment of junior faculty?!) are teaming up to record an online visual memory of The Gates installation. They don't quite know what they're going to do other than collect the photos. All those photo annotation and management folks should be licking their chops and proposing stuff.
Hint: since all the photos are just going into Flickr, public no less, with a particular tag, you can use the Flickr APIs to do some cool stuff.