Dennis,
JFBConnect has a 'Channels' feature, which lets an administrator for your site push any URL from your site to a Facebook Page or Group, Twitter Stream or LinkedIn Company Page with one click. However, we do not automatically post activity and URLs from your site to those channels.
One of the issues, specifically with JomSocial, is that each activity update doesn't always have it's own unique URL. When you post an update to any of the social networks, they expect a unique URL to go along with the post. With the way JomSocial creates most activity, we'd be able to post the JomSocial home page or each user's individual activity stream. Posts like the "Hello there" update in your example above wouldn't have any URL we could post that relates only to that post.
I hope that makes sense, but if you have any other questions, please let us know.
Thanks,
Alex