Very good news to start the week ! thanks Eric !
Nice, assuming more social sharing buttons will be as well?
i.e: RT button for Twitter, Linkedin Share button?
I've been using it on my network for months now. If you want, here is the link to get it, or you can wait for Ning to implement it. The latter may be prefereable since you're going to have to unsinstall it once Ning releases theirs.
Let me know what you decide.