So one of the many cool features of VS Update 2 CTP is the integration between CodeMap which was a new feature in VS Update 1 that enables you to drag code onto an Architecture diagram.
With VS 2012 Update 2 CTP, you can actually also drag code during a debug session. I've illustrated this with a simple example below. You get a nice context menu that provides the shows items like "Show on Code Map" and "Show Call Stack on Code Map".
Pretty cool, because can visualize code whilst you're debugging. Very handy if you're getting familiar with a code base. Just tried it out and it works like a charm. Click on a method and bring it in the Architecture diagram. Feel free to click on the diagram to get the "big picture".