I was thinking more along the lines of quantum computing and the rapid development of new components for it by MIT and others. For conventional electronics who knows what applications such a thing could have, perhaps not conventional computing, but there could be plenty of applications. As you said when the underlying principles are understood and formulas based on them are created defining the properties, then it becomes engineering. However new applications are usually found in the process and there is a lot of creativity involved in making practical things from a fundamental discovery like this, if true.
It won't take long to know more with today's internet, this is Nobel territory, or a Holy Grail at least.