I don't know, but why would anyone even consider running ChromeOS? The fact that you have to sign in (with a Google account) gives Google unprecedented opportunity to track your activity in the OS. Even something as simple as printing to your desktop printer requires sending your documents via Google's cloud print service.

Imagine having to sign in to Windows or your Mac with your email address and having to remain signed in always to use the OS. Most of us would be horrified. I'm just astonished by how little comment is made of Google's insatiable appetite to track and record online behaviour.