Pimero Free Edition
Pimero 2009 enables you to manage your appointments, contacts, tasks, notes and emails. Pimero is your Outlook alternative and will soon become the perfect organizer for all your personal data.
Completely free - No registration required. The features include: Multi user capabilities, Private entries, QuickView, RSS Feed Reader, Print Center, Reminders, Automatic Backup, Recurring appointments with exceptions, National holidays, VCard/iCalendar Import.
If you need the data to be synchronized across multiple computers and user accounts please have a look at the full version of Pimero at http://www.pimero.com. While the Free Edition is limited to private usage only the full version comes with everything needed in an office environment. Enhanced permission management, a web interface for stationary and mobile browsers are there and work as expected right from the start.