“The KOffice team is happy to announce the second Beta of the upcoming 2.1 release that implement the KOffice 2 vision. The KOffice community has now switched from adding new features to fixing the remaining bugs. As can be seen in the full changelog the bugfixing is very active in all parts of the suite. Something that is not obvious from the changelog is that there has been much activity in the MS office import filters, especially for MS Word and Powerpoint. Many new formatting features have been implemented in both these filters.”
http://www.kdenews.org/2009/09/17/koffice-be-used-next-generation-s…
That should finally give it a bit of installed base.