Here's a good answer by someone else :). http://news.ycombinator.com/item?id=2184735 http://news.ycombinator.com/item?id=2184735 As far as target, I'd presume

Here's a good answer by someone else :). http://news.ycombinator.com/item?id=2184735 http://news.ycombinator.com/item?id=2184735 As far as target, I'd presume people who want to keep control of their photos and keep them for the long term (10+ years). Who knows what's going to happen with all those Facebook photos 10 years from now.