Google improves the virtual keyboard in Chrome, but why?

Google has been working on a software keyboard in Chrome OS for nearly a year. And it keeps getting better: the latest improvements allow you to lock the keyboard in place on screen. But what device is this for? I have an idea.

4 new features in Chrome OS that improve the desktop experience

The latest Developer channel update for Chrome OS offers a number of improvements that brings the operating system closer to traditional desktop platforms. Touch enabled drag-and-drop, better channel switching, and a way to see all open windows with a single key click are here.