The second new feature adds YouTube videos to search results. Tap to play or you can swipe forward or backward to move ahead or rewind, respectively. The example Google uses is to imagine that you're riding your bike when the tire goes flat. So while you're wearing Glass, you do a Google search to repair the tire and a YouTube video pops up making the whole process easier. The third and last new feature from the update is called Sound Search. Hear a tune you like, but you're clueless about the name of the song and the artist? A long press on the touchpad and a swipe forward will bring you the answer. Or, you can long tap on the touchpad and say, "What song is this?"
Google also announced that it is testing Glass with Google Apps accounts and says that email is already up and running. You can check it out by factory resetting your Glass and signing in with your Google Apps Account.
source: GoogleGlass via TheNextWeb, IntoMobile