Mailbox for iPhone arrives to keep us on top of Gmail, aims for true inbox zero (video)

Anyone who gets a regular deluge of email knows how tough it is to clear the inbox rather than just hope all those messages will go away. Orchestra thinks its new Mailbox app for the iPhone has a simple solution to the glut: treat email like task management. Along with reducing mail deletion to a single swipe, it lets readers postpone action until the evening, the following day or whenever it's easier to handle. It may come in handy for a few power users as well when it supports multiple account...