BitPal

BitPal is an address book, calendar, shopping list, and a to do task manager. It's nicely designed and easy to use. And it's designed to be mobile. BitPal now syncs to Microsoft Outlook, as well as Apple's iCal and Address Book. Take your address book info to work, while keeping it off company computers. Have your to do list in the palm of your hand. It's your data anywhere. Version 3.7.9 may include unspecified updates, enhancements, or bug fixes.

Requirements:

Windows XP

Limitations:

15-use trial