What does it do? It can post to shared journals, the list of which is automagically collected from the server when you 'Update Info', which is also when it gets the list of friend-groups you have set up. You can enter your own moods or use the predefined list, but no support for that list to be updated from the server yet, and it gets your current iTunes track too. The latest feature is the ability to choose between seven colour schemes.
Many thanks to mrelusive for the graphics and int for invaluable code assistance right here in this journal.
It's available from DashboardWidgets.com.
Updated: link to LiveWidget page changed to http://www.dashboardwidgets.com/showcase/details.php?wid=567