In an article this week saying that dropbox close second services / applications quite used by a wide range of users (especially photo manager, Carousel).
The next update for iOS and Android Shortly ago, makes us think that Dropbox, long-term, wants to focus more on the business than those free users or have plans "personal".
As you can see in the above screen, besides the iPod Pro update we also have an update for dropbox Business. In 4.2.1 Dropbox version, adding an icon of the shared folder (share) of the members of the business and "personal". This change of icon makes it easy to identify shared folders between members Dropbox Business.
As a "free" user, I look forward to Carousel's integration in Dropbox for iPhone and iPad.