Please be aware that the following packages are from unofficial repositories. That means they are not reviewed by openSUSE and may contain unstable or experimental software.
Personal organizer with calendar, tasks manager and address book
Osmo is a handy personal organizer, which includes calendar, tasks manager and address book modules. It was designed to be a small, easy to use and good looking PIM tool to help to manage personal information. In its current state the organizer is quite convenient to use - for example, the user can perform nearly all operations using the keyboard. Also, a lot of parameters are configurable to meet the user's preferences. On the technical side, Osmo is GTK+ based tool which uses a plain XML database to store all personal data.