jzuver wrote:
Kunena works seamlessly with the plugin (available on the Kunena site).
You'll see member posts and discussions on the JomSocial Activity Stream.
Works pretty well.
Can't speak for the other forum components since I have not tried them.
I agree, Kunena goes very well with Jomsocial. They're implemented together on kunena.org so you can see how it looks. The Kunena devs liaised a lot with the Jomsocial team to get it all working nicely.
Kunena is also - IMHO - a fantastic forum component in its own right. The criticisms that have historically been made of it (like the huge number of database queries) have largely been addressed, and the latest versions have a feature that automatically blends the look and feel of the forum into your Joomla template. So if you've got a cool RT template you can have a seriously good-looking forum with virtually no work.