If you havent seen the "Its not about the shoes" commercial its worth a look Here - Watch the comercial on Youtube here
It also reminds me that interactive surfaces are "not about the hardware" (As Smartech's David Martin rightfully points out). Touch based surface devices (Interactive Whiteboards or IWBs for those in the classroom) are in fact not about the hardware at all .. Johnny Lee proved the point with the $50 wiimote interactive whiteboard system.... Touch based interactive devices are about the software - not dragging a flat square across a flat screen.. but manipulating deep immersive 3D virtual objects. It is about the metaphore (As Smarttech's David Martin would say), it is about the software that encourages imagination, collaboration, and creativity.. Its about the kinetics, the movement, and the touch .. but most importantly it is about the software that encourages it.
Read more about touch based systems from computerworld.com
in their article - Touch-screen tech comes of age