ACEIZE

I saw this article on BoingBoing. It is a summary of the various computer interaction technologies from science fiction movies. All the biggies and a few I've never heard of are represented -- Star Trek, Star Wars, The Matrix, Total Recall, Minority Report, Futurama. In particular I was attracted to the 3D table from X-Men. It looks sort of like magnetic ferrofluids, doesn't it? I wonder if the shape of electro-magnetic fields can be controlled to that sort of extend?