Chromebooks embrace Android
Android's anti-password stance carries over to Chrome OS, too. Sometime this fall—presumably around the time Android L goes live—Chromebooks will pick up the ability to sense your Android phone via Bluetooth, then automatically unlock your notebook, going so far as to sign you into your various associated Google accounts. Handy!
If your phone isn't nearby, of course, you'll still have to sign in with your Google account password. The automatic authentication isn't the only deep Android integration coming to Chromebooks, either.