The way the calendar list view is currently set up, you can only list the
appointments in a one calendar month period.  But the main reason to have a
list view is to be able to search appointments over a long time period
(when did I meet with X last year? When is Y's birthday?) or so I can do
things to a large collection of appointments (delete, move to different
calendar, etc.)  So what's needed for the list view to be useful is a way
to set the date range.  I see no way of doing this -- in the date picker on
the right I can select at most 5 weeks, and the search criteria that are
hardcoded in the search field are useless.

Suggestion: Add "advanced search" option where I can say things like "Date
after" and "Date before", etc.