We don't keep exacts stats for this sort of thing, but approximately a bajillion people have asked us to add the ability to sort photos within a photo album. It's a pretty sensible request – it sucks trying to get photos in a specific order on Facebook. And probably about once a week, someone around the office would say, "Hey, we should add photo sorting." If they were lucky, they might just get a bunch of people rolling their eyes; unlucky souls would get a gruff reply along the lines of, "Yeah, so build it..."