Following our own Fallback-model we support now Internet Explore 8 in x3dom. This setup utilizes not WebGL for rendering but needs a installed X3D-SAI plugin.
We use a modified version of the SAI-importDocument-service to import the DOM-data and this is only available in the plugin version of InstantReality right now. You have to install and register the daily-build version.
Not everything works yet and you have to install an extra ActiveX-Plugin. On the other hand you get the high-performance C++-implementation which supports all X3D-profiles and some extra feature: Like Raytracing your data in realtime.
We will demo this version during siggraph next week at the Web3D booth (1024). Come by to see the whole setup running.