What makes OmegaWiki so special, is that the presentation of the data is shown in the language selected in the user preferences. The data is sorted properly. It is really nice.
In the next version of the software, it will be possible to localise the headers as well. These are currently in English only. In contrast to how the localisation is done, the headers will be system messages. In this way each Wikis for Professionals can choose the headers that provide the best fit for its application.