Researchers have, for the first time, used a conventional, high-throughput printing process to create sheets of high-quality carbon nanotube transistors on flexible plastic (PET) sheets. These flexible sheets, made from the same kind plastic as the Coke bottle you just took a swig from, could be used to create flexible, low-power displays for applications as small as a smartphone or as large as your living room wall -- or touch-sensitive electronic skin for robots and prosthetic limbs.