Just close your eyes… take a deep breath… and imagine a world without email. What used to be mail messages are now posts, tagged and targeted and secure. Your PDA, mobile phone, or desktop readers are instantly notified of the communication directed at you, and can immediately navigate to it so you can read it and respond.  Filtering is tunable and works.  No full inboxes, no bounces, and no spam. Is this a dream or is it the future?