ODF Viewer avaliable
This small application allows to view ODF documents even if no office suite supporting ODF is installed. For example, with this tool you can read ODF e-mail attachments or ODF documents download from the Internet without having installed OpenOffice.org or one of the other suites supporting ODF.
The application is currently in beta testing and does not yet support ODF 1.0 fully. I'd expect frequent updates. It is probably best recommended for power users or environments where it can be installed and updated by an IT department.
The ODF viewer is based on a XSLT style-sheet to transform XML to (X)HTML. The transformation infrastructure and the user interface are based on XUL and XULRunner.