A minor OTA update is now rolling out to the small population of people who happen to own Google Glass. This release, XE19.1, brings improved network connectivity, so Glass should now do a better job of handling spotty network issues when issuing voice commands. This is good considering how much Google's voice search relies on the web.
XE19.1 also brings in a slight visual revamp, as Glass now has a cleaner look for voice actions.
That's it for 19.1. The release notes for this one are decidedly short, so while you can hit up the source link below for more information, there isn't anything else to see. For now, the best thing owners can do is wait for the update to arrive and experience the goodies firsthand.
Source: XE19.1 release notes