It's not certain which systems are coming next, although we'd expect the late Chromebook Pixel 2 to be next in line given that it's the only one listed as supporting Android apps in beta Chrome OS releases. Almost all other compatible devices (including machines from HP, Lenovo and Samsung) are still waiting for their turn. But hey, it's a step in the right direction -- you're that much closer to running your favorite phone apps from the comfort of your PC.