There are two calendar enhancements I'd like to see that would be great leaps forward. I have submitted feedback to Apple. 1. View other people's Exchange calendars. It's hard to schedule meetings when you don't know if someone's free this would be a great productivity aid. 2. Conference call and web conference joins. There's an app I find invaluable called MobileDay that does this elegantly. Incorporating this would be a Great Leap Forward in making the phone useful.