I don't quite get the interest of this presentation. It's presented as some kind of revolutionary "hypervideo" mark-up language technology, but it looks like a rip-off of VRML to me. So, you can watch a documentary and click on the jacket of the dudes to get further info on their equipment while the video is still playing. Great. In my book, it's just a fancy dashboard.
Does anyone remember the 3D desktop of Phase 5's A\box announced a decade ago?