Rick, I don't know about the graphene side of things, but as an fyi, the carbon nanotubes leverage an SOI wafer -- I wrote about this in ASN a couple years ago. IBM "fabricated trenches made of hafnium oxide onto SOI wafers, which allows the self-assembly by the carbon nanotubes into neat rows rather than a spaghetti-like tangle." (see http://bit.ly/XPEFXc)
Drones are, in essence, flying autonomous vehicles. Pros and cons surrounding drones today might well foreshadow the debate over the development of self-driving cars. In the context of a strongly regulated aviation industry, "self-flying" drones pose a fresh challenge. How safe is it to fly drones in different environments? Should drones be required for visual line of sight – as are piloted airplanes? Join EE Times' Junko Yoshida as she moderates a panel of drone experts.