Just seen a post on Brian Harry’s blog that the license has been changed for TFS. You no longer need a CAL for all users who connect to the TFS server, a special case of users has been created, those who can create work items, but do little else. You now have an unlimited number of theses as standard.
Why is this good? it means you can have anyone in a company connect to the TFS server to log bugs or change requests. Previously to do this means you bought a lot of CALs, or very naughtily ignored he license, so this is good sensible move.