Google+ is out this week with a number of updates and announcements. Get all the info on their blog here, some notes include: Hangouts is now available on Android devices with a front-facing camera, and supports screen-sharing, sketchpad, and Google Docs. Hangouts ‘On Air’ lets you broadcast a video hangout to an unlimited number of users. Search has been integrated. And, it’s gone open beta, no invitation required to join.