Update: the calendar described in this post is no longer maintained.
I have created a public Google Calendar which mirrors the University of Michigan’s academic calendar.
The page for the project, including details on using the calendar, is here: UM Academic Calendar.
This makes schedule management much easier for those of us who use Google Calendar (or any iCal-compatible application) to track our calendars. Go check it out today, and let me know if it’ll be useful next year!