It does sound good. Apparently they "found" it by accident, when trying techniques out for making carbon nanotubes (which are also pretty cool too). Theres more stuff here: http://www.bbc.co.uk/news/technology-14803871
Am I correct in saying that graphene is in effect a flat carbon nanotube?
Also, one other thing which is never mentioned in these things is how to sufficiently attach other parts of structures/circuitry to them. It's all fine and well that you could use a carbon nanotube thread the width of a human hair as one of the cables in a suspension bridge, but implementing it into the structure of a normal bridge would be very difficult.
Regardless though, there should hopefully be a space elevator in my lifetime!!! :)
Graphene is a single layer of carbon atoms. To create a carbon nanotube, you have to roll that sheet of carbon.
Pratically you don't do this, there is some technique to create carbon nanotube but the difficult part is to select them because we can distinguish 2 kinds of nanotube, Single-walled nanotubes (SWNTs) and Multi-walled nanotubes (MWNTs). A multi-walled nanotube is in fact 2 (or more) SWNTs in each others like when you roll sheets of paper.
SWNTs are better (higher mobility) than MWNTs because there are a lot of interaction between the differents wall that reduce the mobility.
The nanotube will play the role of the "highway" for the electrons in a transistor, by that it will connect the Source and the Drain (just put on top or under the electrodes) and let it pass or not the electrons by applying a voltage on the gate.