Dropbox have today made the decision to ditch the Mailbox app it acquired in 2013 as well as the Carousel Photos app. In a blog post Dropbox explain, “we acquired Mailbox because we believed in the way it was making mobile email better. In 2014, we launched Carousel to create a new way to experience and share photos. With both, we aspired to extend the simplicity of Dropbox to other parts of our users’ lives”. The reason for closing these down according to Dropbox is “about tough choices. Over the past few months, we’ve increased our team’s focus on collaboration and simplifying the way people work together. In light of…