Many of the leading countries have switched to OpenOffice (or the ODF file format) in their public administration, education system or in several municipal governments.
Being in public administration, that is news that warms my heart. I've actually got one of my new employees using OpenOffice.org now (maybe two?). Would really like to get it deployed throughout the organization, but that will be a pretty major change. Funding restrictions may work in favor of that looking forward though.