Here's an interesting piece of news for you all: http://science.sciencemag.org/content/362/6418/1037 It is basically a form of vanadium dioxide developed by researchers of the University of Wisconsin-Madison, which can be switched from being an insulator to being a conductor, and do so rapidly. The transition does not affect the composition or the structure of the material, but only the arrangement of its atoms. The method of the transition seems to be heating/cooling. I can think of a million potential uses for this new material, so I am hoping it finds its way to further development.
Oh, this is a very interesting article. I also think that this material has a very big potential for use. How long will it take for the industry to start producing it in sufficient quantity?