I was watching a Nova episode a bit earlier, where among other things, they were touting graphene (one atom thick) as the replacement for silicon chips in computers. Apparently, it is able to conduct current without any resistance, and would therefore be far faster than current technology. I have no idea of when or if this will come onto the market, but it shouldn't cost more than what we have, because it is easy to produce in large quantities.
They also spoke of another material (forgot the name) that instead of being thin and flat, like silicon, forms in rod shapes, which would end the need for ever thinner silicon chips, which are nearing their thinness limit.
Anyone heard of these before? http://www.hulu.com/watch/245484/nov...0,vepisode,1,0