We’d like to bring the nuance and richness of real-life sharing to software. We want to make Google better by including you, your relationships, and your interests.Information about the site is limited to the original blog post as well as a post on Wired describing the service. Access is limited to 'invite-only' at this time and there is a form available to register your interest.
Once I receive my invite I will post my impressions.
Links
http://googleblog.blogspot.com/2011/06/introducing-google-project-real-life.html
http://www.wired.com/epicenter/2011/06/inside-google-plus-social/