It is a step forward in increasing the compatibility between intelligent home IoT products through the Zigbee Alliance. They just announced the Project Connected Home over IP in partnership with Amazon, Google, and Apple. The top players in the home IoT consumer products and the members of the Zigbee Alliance, including Samsung, IKEA, Phillips, and other manufacturers, are working towards a more streamlined manufacturing process and more inter-compatibility between the consumer products, such as Alexa, Google Assistant, and Siri. Moreover, the working group material is being open-sourced on GitHub. This initiative is timely when the industry is witnessing considerable growth in demand and data stream of the billions and billions of small devices connecting together via the Internet. Their work is also open-sourced on a GitHub repo - project-chip/connectedhomeip.
(photo taken from zigbee alliance announcement)