Zune Software version 3.1 available…
When you open the Zune Software today, you’ll be presented with the option to upgrade to the latest revision.
You can also grab the update for a manual installation from the following link:
http://www.microsoft.com/downloads/details.aspx?familyid=ecc2d7ee-bf20-416d-bb44-f6b7cccae253&displaylang=en&tm
Read about the new games included with the update along with some improvements to the Zune interface:
http://zuneinsider.com/archive/2008/11/18/zune-3-1-update-your-zune.aspx