KDDI's R&D labs, this prototype mind-monitoring, sensor-laden headband connects wirelessly to your Android device to let you know just how stressed out you are. All it takes is a simple 30-second game of "mash mash mash the little green robot" (amongst others) to translate your focused and relaxed states into an easily readable brain pattern chart. The tech's nothing we haven't already seen the ominously named NeuroSky do for the iOS platform, but it should help to get those fanboy flames a-blazing. Of course, if mobile OS turf wars don't get your neurons in a tizzy, you could always spend half a minute thinking of your honey -- or actual honey. Whatever floats your neural boat. Video demonstration after the break.