Researchers at Oregon State University have developed a new kind of material which should enable the creation of transparent electronic devices. Unlike many other recent breakthroughs, these do not use carbon nanotubes or the like; they are, in fact, entirely inorganic, and are most closely related to zinc oxide transistors. This means that the technology for production is already fairly advanced, lowering the ultimate cost of making devices using this new technology. In addition, much to the surprise of researchers, high quality transistors can be made at just above room temperature -- today's components are often made at 700-1,100 degrees centigrade.
Transparent electronics could have a wide array of applications, from vehicle windshields able to display warnings and directional information to improvements in copy machines and solar cells. And the applications to participatory panopticon-related technologies are pretty obvious...