It could just be another stupid useless internet/social networking...thing, but Google sort of has a track record for awesome stuff. You can sign up to get into the beta, which I did through that link.
Also, if anyone is able to send invites, send me one. I don't care about Google+ so much as I want to annoy the shit out of my tech-obsessed friend by getting in before him. Also, he's Asian and gay, so that should motivate some of you to help me scorn him, you bunch of bigots, you!