KOrganizer is the first free PIM for UNIX®
which implements the vCalendar protocol for personal data
interchange. This vendor-independent, open standard allows different
programs and devices to share/synchronize event and calendar information
without proprietary standards. The data is stored in
ASCII and is easily human-readable. While some
Windows® programs have implemented a limited import/export ability from
their native formats to vCalendar, KOrganizer's native file format on
disk is vCalendar, so it bypasses this middle-step entirely. It also
allows you to easily access your data without the program itself, in the
spirit of other UNIX® programs.