OpenSocial

What does OpenSocial mean for the growing metaverse?

I'm not sure, yet. Dan Farber concludes, "Facebook users won’t run for Orkut, Plaxo or Ning unless they have a far more compelling proposition."

Being an open API, metaverses might be able to leverage OpenSocial more than the HTML oriented Facebook development platform. But, Facebook might adopt OpenSocial as well.