Action Names Save
Enhances the built-in calendar and to do list with a series of advanced views designed to make managing your schedule easier.
http://www.iambic.com/pilot/actionnames/   

DateBk5 Save
Replaces the built-in Todo and Datebook applications on the Palm Organizer with an integrated program that maintains the general look and feel of the original applications.
http://www.pimlicosoftware.com/   

Plan My Day Save
A planning tool which imports entries from the calendar and todo applications.
http://plan-my-day.sourceforge.net/   

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