I would like to see the addition of a "Header" type of entry that would be used to describe the day's event listings. In the Calendar view, the title of the "Header" entry could be placed in the open space next to the numerical date to separate it from the regular Events entries.
The "Header" entry could be used to:
1) Indicate Holidays on the calendar, or
2) Indicate the purpose for multiple events that fall on a certain day. For example, "Benefit for Rwanda", "Fundraiser for Joe Smith", "Girls Night Out", and so forth.