Dennis Ippel was also at the WebGL BOF last week in LA and really liked the declarative 3D and HTML integration approach we provided with X3DOM.
He promised to do some expermiments with x3dom and already has a Mutal Twitter Friends show-case on his blog
Visualising Mutual Twitter Friends
We love his conclusion so far: “My first impression of X3DOM is that it’s very easy to work with. Specifying the scene through XML nodes is actually very convenient“