Dropbox is proclaiming that it's ready to launch "a new chapter," but what exactly does that mean for the cloud storage king? In addition to its ability to combine business and personal storage accounts, Dropbox also announced that its Mailbox mobile mail app is now on Android -- it'll be available on Google Play starting today for free.

It's not just a straight translation of the iOS original, either. A totally new Auto-swipe feature has been added to mix, which allows the app to learn about the emails you archive and defer until later so it acts appropriately when similar missives hit your inbox down the road. The company also showed off a preview of Mailbox for Desktop as well, although it's not quite ready for primetime yet; if you want to take a peek as soon as it's available, you can sign up for the limited beta.