Google+: Facebook-Killer?

I have just created my Google+ account. Nothing much there yet and I don't even know what's in there at the moment. Nonetheless, given that Google is the biggest Internet company in the world, I am pretty sure that Mark Zuckerberg and his posse at Facebook are on their toes now. Time will tell if this new Google "communication backbone", as one writer puts it, becomes the Facebook-killer, the way Facebook rendered MySpace and Friendster irrelevant to so-called netizens.