This reminds me of DandelO's metacloud - http://www.blendernation.com/cloud-generator-script-for-blender-2-5/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+Blendernation+%28BlenderNation%29
Looks interesting. I'm waiting until at least the beta phase. I have been crashing Blender 2.5 too often.
You can the latest builds here - http://www.graphicall.org/builds/
He mentioned something about needing to have a certain build or above.
But, I know what you mean.