Google has opened up its Home smart speaker in a big way. Today the search giant has added Bluetooth audio to the device for everyone, after teasing it back at I/O in May and slowly rolling out to select users after that. This is perfect if your app of choice doesn't support Google Cast. You know, like Apple Music, or maybe a legacy piece of audio gear. And here you probably thought that the recent music-related Google Home news would stop with Spotify.