Shocking as it may seem, truly conducting plastics have existed for a long while. Organic light emitting diodes (OLEDs) are in many devices. These OLEDs are based primarily on conducting polymers, true plastics capable of conducting electricity. All-polymer electronics (without the need for precious metal resources) are on the near horizon - so near that you might find them in your body before you find them in your home.
Start-up companies, such as Biotectix, are commercializing conducting polymer-based electrodes for biomedical application: cochlear implants, pacemakers, neuromodulators, neural probes, and deep-brain stimulators. Metal-free electrodes are capable of complete integration into the human body, allowing cyborg-like modifications in the near future. Even more mind-blowing is the fact that they have shown it to be possible to grow conducting polymer networks (or plastic electronics) in brain tissue - literally laying the groundwork for an interface like those shown in "the Matrix". It is possible that this technology could be used to fully repair damaged neurons, a feat thought of as impossible by modern medicine.
It is possible that the metal-plastic composite research may never be used in the world of end-user technology, but more than likely will contribute to furthering superconductivity research. In other words, it seems as though the metal-plastic research is purely academic - don't expect Sony or Apple using the tech any time soon. However, this does not mean that electrically conductive plastics are not in our future.
By virtue of fully plastic conducting polymers, it is probable that thin, roll-able screens and foldable e-paper are likely in the near-term future. While the metal-plastic stuff is pretty neat, I think it might be better suited for superconductivity research. The real winner in-home (and in-body) is conducting polymers; no metals required.
Source- CG Research