The iPhone application lets people publish updates to their “stream,” and see the flowing feed of links, pictures and updates posted to the service by the people they’ve chosen to add to their network. The mobile version also includes an interesting feature that lets people view public posts from other Google+ users located nearby. The mobile app also lets people manage who is in their Circles, or groups that they share content with. In addition, the application includes the Huddle feature that lets Google+ users set up private chat rooms with their friends.
Rumors that Google submitted a mobile app to Apple for approval surfaced a few weeks ago, but it was not clear how quickly, if at all, Apple would give the service the greenlight. Apple notoriously kept Google’s other mobile apps — Google Latitude, a location-based service, and Google Voice, a calling service — in limbo for months, eventually prompting an investigation by the Federal Communications Commission.