Liaise is an Outlook plugin that analyzes your emails as they are written (in real time), creates tasks and marks them on a calendar.
Liaise analyzes key words and phrases and suggests actions related to them.

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For example, you write a letter to a friend, Bob.
I didn’t need to send me tickets for the concert next Tuesday.
Liaise (right while you're typing) - creates a new task “Send concert tickets,” assigns it to Bob (recognizes the word “you” and associates with the To field), and sets the due date to next Tuesday.
Cool trick. “Isn't it cool?” Steve Jobs would say and be right. Watch the video - this is all shown in action.
Liaise also recognizes incoming emails, links them to threads and allows you to mark tasks as completed and more.
While it is beta, only Outlook and only in English. For some reason it seems to me that these guys will be bought by Microsoft very soon.
What else would like to see - integration with other email clients and instant messengers. Integration with bug tracking systems and calendars would also be useful.
What confuses - the approach is used upside down. In a normal project management system, the movement should go from tasks to notifications, and here it is the opposite. But for many organizations and individuals who do not recognize anything other than email, it will be extremely convenient.