The Big G has detailed a few changes that are en route in forthcoming updates to both the Google+ desktop interface, the Android app and -- with an undisclosed lag -- the iOS app. You and your inner circle will soon be able to attach Hangout invitations to specific posts, so you can "upgrade the conversation from long-form to live" with a single click. The Hangouts On Air self-broadcasting feature is still in development and only available to selected celebs, but Google is about to roll it out to "hundreds more" public figures
