At the Q4 2012 earnings call, Sandisk CFO did in fact mention that they would get less cost improvement from 1Y nm (probably because it's from quadruple patterning) than from 19 nm in 2013, but they are still proceeding regardless.
I don't understand this secrecy about X, Y, Z...what exactly is 15nm is always debatable (which dimension you measure and how) so we might as well say as it doesn't mean much anyways...perhaps they are trying to borrow a page from the Apple book, let's be mysterious
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.