Could be attached to software to give you the feeling of driving or flying (with flight simulator).
The idea isn't to make an expensive thing, just a simple up down every once in a while this way or that chair.
Could also be implemented by having an inflateable cusion with different parts getting inflated and deflated (is that the way to say it?).-- pashute, Nov 04 2002 massage seat-cover http://www.sharperi....jhtml?pid=34453000 [chud, Oct 04 2004] Sharper Image has been selling these things for years.-- DrCurry, Nov 04 2002 So... this isn't a Poltergeist chair?-- thumbwax, Nov 06 2002 I have a chair designed to make you feel like you're in the front row of a rock concert, or right down beside a symphony orchestra. Vibrating speakers throughout the chair do it. Put on a headset, and someone sitting right next to you only hears a vague rumbling. Now if only it moved! Maybe the motion controllers can be similar in design to force feedback joysticks.-- Amos Kito, Nov 06 2002 random, halfbakery