Besides Tumblr and Path, a separate group of developers are also showing off a social startup service for Glass at I/O called Ice Breaker. The app, which can be downloaded from the Ice Breaker site, is designed to help Glass wearers meet each other by alerting them when another Glass device is detected nearby.
Users are shown a card on their Glass display of the other person's name along with his or her photo, and the idea is that the two people will then approach each other and become friends. Users can get "social points" by then snapping a picture of their new friend and sharing it with others on the Ice Breaker site.
It's "the cool way to meet people," the Ice Breaker site declares.
Ice Breaker describes itself as a "matching" service, but at the moment it pretty much just delivers alerts based on nearby Glass devices using GPS location data, its developers said. Their hope is that they can build up the service to incorporate more ways to determine matches, as the Glass product itself develops and gains more users.
About 100 people have activated the app since it launched Wednesday at I/O, Ice Breaker developers said.
Overall, Glass has been a bit of a mixed bag at I/O. Throngs of Google employees and multiple dozens of attendees can be found wearing Glass at the show, but no formal announcements on Glass were made during Google's marathon four-hour keynote on Wednesday.
"Our main goal is to get happy users using Glass," Google CEO Larry Page said, when asked by a developer, during a surprise Q&A session, what the biggest areas of opportunity were for developing on Glass outside of what Google provides naturally.
"The basic use cases around photography are amazing. Communications are amazing, navigation is amazing. Ultimately, a lot of your experiences can move to Glass," Page added.
At last year's conference, a group of skydiving Glass-wearers landed on the roof of the conference center during the keynote address; there were no such theatrics this year.
Google I/O ends Friday afternoon.