We're long past due for a free and open-source tool for managing one's own identity on the public networks.<p>When we go out into the world, we dress ourselves in a manner befitting the way we want the world to perceive us. For a decade, Facebook has been mandating that we can only wear one hat, ever, and never any masks, and services like Google+ have followed suit.<p>While I'm glad that Zuckerberg has finally admitted that one might want to change hats or put on a mask, I don't think it would be wise to just leave it all up to him, or any other person that has no vested interest in <i>your</i> online identity. It has to be something no one else can control but you.