Calendars allow you to see more than just events. Using the Action Item and Ballot check boxes you can see when action items are due or when ballots close.
Ballot and action item statuses are also indicated by their icons:
an open ballot is a white circle
a closed ballot is a black circle
open action items are squares
closed action items have a check mark in the square
The group calendar also displays shared items, including ballots. Although you cannot vote on these ballots you'll be able to see ballot results by clicking on the respective links.
(Note: this information will not be visible outside the Kavi
web-based calendar itself - Action Item and and Ballot information won't show up in calendars
that you've subscribed to, for example.)