After the self-driving car, Google is promoting the Google Glasses which is another way of making us lazy. Isn't that awesome? :)
In any case, this is one of those times where Google looks like changing everything as Apple usually says when they take something new to the market which happens to be popular, but not necessarily new. Most of the time, it's just tangible idea which was there before, like the iPad which is just a tablet that Microsoft promoted some years ago, but it was unsuccessful.