Looks trendy in public spaces.
But there could be a myriad of applications provided that the brightness is high enough (which is usually not the strong point of OLED displays). Like full displays integrated in windshields, augmented reality screens in general. Could be pretty useful, but again probably only if the brightness can me made high enough and also provided they can withstand relatively high temperatures (for windshields/windows applications). Otherwise, they will remain cute marketing toys.