TFS Branched History 2.0 for Visual Studio 2012
If you use VS10 go to Branched History (1.0) page.
Open source project started: https://branchedhistory.codeplex.com/
Plugin does insert "Branched History" button into the context menu of Source Control Explorer (TFS)
The button icon is with clock like standard "History" but with blue arrow:
If you click "Branched History", new window will be opened and Path property will be set to the current Source Control Explorer path.
The plugin assumes that you should run the command for a branched item. If it hasn't branches it doesn't work.
Click "Start" to get results at the "History" tab:
From context menu you can query standard Changeset Details and Compare File (Folder) dialogs.