I have joined the Google+ thing. Still getting used to it, but early indications are that it is pretty awesome. I'm thinking, could use global circles to allow strangers to meet up and I'm a wee bit concerned about the videochat plugin including a patents pending notice. Main bonus is the feeling of being in control - privacy and all that. Still - early days.
If you are also on there - stick me in the appropriate group and I'll return the favour.