Good online 3D?

I caught this at the Contemporary flash design website, he had a feature on Papervision.

And gave an example of it at a the Dixie Chicks websit, while there has been a long standing barrier for full 3D use on the internet, rendered in good quality or realtime - both in all cases of real 3D required hefty downloads for the category they were to fit in - this technology could open the door wide open.