Of course, a Facebook token is coming. That was the whole A-HA moment Zuckerberg had by getting users to generate the content. Now he'll get users to self-police their content. And toss them a "token" here and there. The value of the token will never supercede the value of "stickiness" it will provide to the Facebook platform.
I'm sure his lawyers are reworking the English language to bend the currency laws right now.