The Ars Technica article is a little less rosy, and goes into a little more detail in the challenges in silicene FETs: <a href="http://arstechnica.com/science/2015/02/first-transistor-built-using-two-dimensional-silicon/" rel="nofollow">http://arstechnica.com/science/2015/02/first-transistor-buil...</a>