Still, there is a null pointer exception in the Batik Squiggle viewer that is preventing the file from being viewed. Not sure if this is a spec violation on the part of the file, or a lack of something implemented in Batik.
Regardless I would still suggest that SVG developers use a subset of the SVG specification that can be viewed in all major SVG viewers. I would also like generation tools that have an option to produce cross-viewer compatible SVG.
For over a year I have been using Mozilla because it beats IE on features hands down. Also using Mozilla means I can use the same browser on both Windows at work and my Linux desktop at home. Until I can view the majority of SVG files on the Web in the latest release of Mozilla, SVG is a dead Web format for me. I would imagine that there are many Linux users that feel the same way.
I hope that the newly formed Mozilla Foundation places more emphasis on the development of native support for SVG in the near future.