That's where Outlook and Act really start to diverge. In Act you create the Task like "Fix Header on Customer X's Website" and it's automatically assigned to Customer X provided you created the task when working with that contact, then when the task is completed, you can look back in the Contact's history and say, oh, yes Mr. Customer X, we completed that back on the 15th of the month...simple. Why can't MSFT make Outlook work that way?