Virtual reality has had its time in the spotlight. Now it’s augmented reality’s time to shine. That is, if both developers and users are alike are actually able to get their hands on the technologies, both hardware and software, for AR. That is what Google’s ARCore and Apple’s ARKit are attempting to do on the device side. Now Google is trying to wean app developers into the AR world through a free Coursera class centered around, of course, ARCore.