Mapping sites, pages and links into 3D space
Being able to move them around and manipulate each page as a window on the screen.
Now that would be a killer app; a 3D browser with this interface.
Andy: question? When looking at the video, the camera images seem to have some sort of 3D effect. I would assume that with goggles, real 3D could be achieved.
Is there any thinking going on about that? (I did not yet read the paper)