I have made a post on MEA ALM Community Blog, showing some of the changed and added new features done in TFS 2012 from project management prospective, the new TFS web access and how it gives a high- level overview of the current iteration, also sprint planning and how it’s easy to adjust it by changing any the information of any task. Also showing task board where you can see the tasks by state and move the tasks from state to state visually.
To read the whole post click here