[mgillett]

I think what's so great about Dropbox is that they don't really have a focus. They do synchronization, and they're superb at it.

It seems to me that Dropbox is trying to change how customers perceive them and that managing photos is just the first step. Until recently, I think they've largely been viewed as a handy service to share files quickly between friends and across devices. There are a certainly a lot of exotic use cases for their product, and some other commenters have touched on specific ones, but the average person doesn't take advantage of them (or have them). If Dropbox can position itself as a base to store and share photos, videos, music, etc (notice the range of sharing options in the top right of the iPad in the blog post) they can give users peace of mind and easy access to content that is now strewn across several services and not carefully curated in other storage solutions.