Mailbox for iPhone just received an update that adds smarter snooze controls, faster swiping, and general UI improvements throughout Mailbox that should make the interface more fluid.
Smarter snooze controls within Mailbox are now available via the Settings panel of the app and allow you to adjust time and date settings for alarms tailored to your day. You can set when you wake up, when your day ends, and how much later you really want a later item to go off.
The update also includes the ability to swipe faster and as many items as you'd like at the same time. If you were experiencing a bug when using the swipe to open feature, that should also be taken care of in this update as well. If you've already installed the update, have you noticed anything else new?