Automotive assistant - BMW’s IPA (Intelligent Personal Assistant, not the type of beer) will start in the car, but BMW envisions their assistant to be active on smartphones and smart home devices too eventually.
Design process 101 - The process of getting from inception of the idea to the actual action/skill/voice app is pretty straight forward. It might not be what you are used to if you create digital products in the old fashioned way. This article goes through the process in detail. From personal experience: this is how it should be done.
Voice principles - Quite a bit of good content by Google this week. Here are six principles of human conversation poised to revolutionize Voice User Interface design from the Creative Lead with Google’s Conversation Design team. All of them deserve their own deep dive, but this is good to get you started!