One of Google's other worst-kept secrets just became official. Google has unveiled the Nest Mini, a long-expected update to the Home Mini that offers more tweaks than you might have suspected based on leaks. There is a wall mount (the better to keep it out of reach of kids), but that's really just the start. The smart speaker has been tuned to produce a much fuller sound, including twice-as-strong bass. You can also expect three microphones instead of two, increasing the chances the Mini will hear you correctly the first time.