[saqer]

Pocket Informant is a powerful PIM that allows you to create custom views for both calendars and contacts views. You can then specify the criteria for each whether it be sorted by category, date and other criterion. Pocket Informant ain't cheap, but let me tell you it's a good investment if you need a powerful PIM. I'm sure there are other less expensive PIM that might have similar functionality but you would have to try them out. Agenda One is such app.