Mailbox has quickly become a popular iOS app and will now be available for Android devices and soon for OS X users. The gesture-heavy email client from Dropbox was first an iPhone-only email app with support limited to Gmail, but then became a available for iPad users with iCloud and Yahoo email support also added. Besides the new availability, it will also have new features, including Dropbox account sign in and synching and delete automation coming zoo to its iPad and iPhone versions (it’ll debut first in the version available for Android). If you’re interested in the beta version of Mailbox for OS X, you can sign up now on Mailbox’s site to learn more about the launch. Mailbox for OS X is supposed to be minimal and rely on your computer’s trackpad for gesture-based commands. If you use Gmail on you Mac, you’re probably jumping for joy to now that Mailbox is coming to OS X since it has continuously been criticized for its countless issues.