Developing apps for smart devices can be very exciting. But you don’t want to only target one device with your apps. Thanks to Google’s new reference sample, you are going to have an easier time figuring out how to develop an app that works across multiple Android form-factors. This is a Universal Music Player that is functional but does not have too many bells and whistles. It is compatible with Android Auto, Android Wear, and Google Cast devices. You can find out more about it here.