While this technology could just keep getting better, they have hit a milestone. The cables they make now are as good as copper.

 http://www.technologyreview.com/energy/38615/?p1=MstRcnt

This is very exciting. For the aviation industry this could be a boon. Airbus is using aluminum wiring in some of their aircraft for weight reasons, even though aluminum does not transmit electricity as well as copper. If the cost is even in the ballpark, we could see the aviation industry switching quite rapidly.

Obviously there are cost, longevity and maintenance issues that will have to be resolved. Production issues as well.

But the benefits are so obvious, I see a lot of money being thrown at this to get it into production and into vehicles.

Update 1/8/13: 

http://www.technologyreview.com/news/509766/nanotubes-turned-into-super-fibers/

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