Corrections: Calgoo, covered yesterday, does allow you to enter new appointments (you have to go into the Appointment Details pane). And it does let you display multiple calendars at once: if you put separate calendars into a "group," you can display all the calendar items in the group.
Calgoo corrections
Calgoo corrections
Rafe Needleman
Former Editor at Large
Rafe Needleman reviews mobile apps and products for fun, and picks startups apart when he gets bored. He has evaluated thousands of new companies, most of which have since gone out of business.