Google Now is now able to turn things on and off using voice commands, although the feature is exclusive to Android 5.0 Lollipop for now.
Google now ready to offer a feature of recording calls to its Google Phone App and comes with an option that able the users to see transcripts of the calls.
When there's a will, there's a way.
Google currently has two launcher apps in the Play Store; Google Now Launcher and Pixel Launcher. In a few months, there will only be one.