While it is not strictly classical nanotechnology, researchers at OSU and Hewlett Packard are reporting the development of transparent transistors based on zinc-tin-oxide.
This of course begs the question given the energy absorption capability, heat radiation capability and the fact that one is moving around electrons which can be much faster than moving around covalently bonded carbon atoms (as is the case with the Drexler rod-logic computer) whether we are headed for an age when our windows are more intelligent than we are?
