I'll be travelling for the holidays for the next week or so. Updates will likely be fairly slow until I return.
The OpenOffice Project has released OpenOffice 1.1.4, an open source office suite for Linux and Windows that saves all its files as zipped XML. I used the previous 1.0 version to write Effective XML. 1.1.4 is exclusively a bug fix release. OpenOffice is dual licensed under the LGPL and Sun Industry Standards Source License.