Dropbox announced today that it is acquiring Mailbox, an iOS email client designed to take better advantage of a touch interface. The app launched last month, and the Mailbox team says they're already delivering more than 60 million emails daily. Demand for the service continues to grow, so they were exploring their options to expand. They said, "We can’t wait to put Mailbox in the hands of everyone who wants it. This means not only continuing to scale the service, but also including support for more email providers and mobile devices. Add to that a host of new features and we’ve got a LOT of work to do, certainly more than our current team of 14 can handle. We need to grow and we need to grow thoughtfully, with top-notch people who share our goals and values. Enter Dropbox, the team from San Francisco who helps over 100M people bring their photos, docs, and videos with them anywhere. They’re a profoundly talented bunch who build great tools that make work frictionless, and Mailbox fits Dropbox’s mission like a glove. Plus, they’ve got a ton of experience scaling services and are experts at handling people’s data with care. In short, Dropbox is our kind of company."