You know, I actually thought that too, then I tried to actually use it for a while, and found the viewing and sharing to be such a breeze. On Android, to share a photo, you just have to swipe up, and all the photos that you swiped up on will be shareable very easily in just two clicks. I also thought the technology behind it is quite interesting. https://tech.dropbox.com/2014/04/building-carousel-part-i-ho...