We're aware of the Kunena 3.0 Release Candidate, but don't have an update for our social profile plugin yet. An updated plugin should be out over the next month which will support Kunena 2.0 and 3.0, but I don't have a better timeline than that.
Hope that helps, but if you have any more questions, just let us know.
I'm giving it a go on a side project - but having problems getting the facebook login to work.
It just flashes up a window which then disappears.
Would you mind taking a quick look?
When I try to login, the FB popup window shows "An error occurred. Please try again later.". That's almost always an indication of either of the following issues:
* Autotune hasn't been run recently. Mainly, your Application Domain or Application URL are incorrect. Re-run autotune and hit 'Refresh' in the top right of the FB App area. Make sure all your settings are as recommended.
* Your app is in sandbox mode. Go to the FB Developers Area and make sure the Sandbox is disabled.
Hopefully that will get you going, but if not, let us know.