Update as of 14.03.2012:
There’s a new version of our blender exporter available at https://github.com/xml3d/Blender-Exporter, which now supports blender 2.62+
If you want to try out XML3D, you can do the following:
1. Get the Blender exporter from GitHub: https://github.com/xml3d
2. Export your favorite scene
3. Load it into a browser that supports XML3D:
This is either one of our native implementations from our website or try out the WebGL implementation with an WebGL capable browser, e.g. the latest Google Chrome browser or Firefox 4.0.