Google Glass update adds 'vignettes,' sound search and more

Glass still isn't quite ready for the consumer, but Google's wearable platform just keeps getting better and more powerful thanks to frequent software updates. Today's version bump brings YouTube to your search results and also grants access to those with Google Apps accounts. It also brings the Shazam-like Sound Search from Android to your head-mounted display. Most interesting though, is Vignettes, which allows you to lay your current Glass display over a photo to produce an image like the one...