So the D-Box demonstration...they played a 2 minute clip from Avatar 3D. Playback was on a high end 3D projector to a very slightly curved screen The curved screen itself was very nice and there was no image distortion that you normally get projecting on a flat surface. Speakers were all Totem. The thing that made the demonstration interesting was the recliner chairs we sat in. They would vibrate and the cushion would physically move with any extreme motion on the video. ie when he is flying on the pterodactyl looking thing when it dives down you can feel the seat giving way under you. And the same when it went side to side. I am not a fan of 3D, but it was done very well on this setup; the projector itself was very bright so it didn't feel like you losing much light when the active 3D glasses were worn.
The part that was disappointing was that the BluRay software needs to be encoded for the D-Box experience... this might be a hindrance given the costs of the setup.
I would LOVE to own that 3D projector, easily the best projected image quality I've seen