The first is updating your status message on Facebook, this is the same place the Twitter one is. You can post to Twitter and Facebook at the same time. You'll need an extra permission from Facebook to get this working - to add this go to "settings" on Facebook network page.
The other feature is AJAX notification of when new stream data is available. This appears as yellow box on the top right of the stream.
The most useful part of this is that it updates the title on the tab, so you can leave FriendBinder open on tab and you will see without going to the tab when you need to check it.
Please tell us what you would like to see in FriendBinder either in the comments on this blog or our Google group http://groups.google.com/group/friendbinder
