Pinning: Responsibility and Notifications in One System
Using pins you can mark who is responsible for events, tasks or messages:
The event/task drawer is available everywhere under the project tab. This allows you to complete/add/edit your events/tasks regardless of where you are in the application.
You also can choose how to be notified. On the dashboard, you can select to subscribe to e-mail alerts, RSS^ or iCal*. Use whatever makes you comfortable.
^RSS is a messaging format understood by Google Reader, Newsfire, Outlook and others. (RSS in Plain English)
*iCal (or iCalendar) is a calendar format understood by Outlook, Google Calendar, Thunderbird, Apple iCal and others. (Wikipedia)