Picked up via Engadget (we know we should be doing better things with our time...) the movie below details DIS.PLAY a flexible display consisting of foam and force sensors which is deformable. The system works with the parameters position and time like other touch screens as well, but in addition to that, it reacts, above all, on the intensity of pressure:
impress - flexible display from Sillenet on Vimeo.
Combine this with a Geographical Information System and a whole number of possible scenarios come to mind such as trying out fluid motion in terms of flooding scenarios by raising or lowering the land....(?)
See http://www.silkehilsing.de/impress/ for full details.