"There's no doubt that first version was a little clunky, a little bit too much of a technologist's dream .... But we listened hard. People asked us to change it and we drove it forward," Gates told an audience of analysts, journalists and business partners at the event.
Apparently, one of other new features is an auto destruct email that deletes itself at a pre-determined time from delivery - I'm not too sure how this can work with current data protection / retention issues in the UK and US.