From http://blogs.msdn.com/gpde/
Microsoft’s Global Product Development team in Europe recently completed its Treemap control for visualizing hierarchical data, seen below. You can read more about it here and leave your feedback.

If you are excited by what you see us doing, check us out at www.joinmicrosofteurope.com/.
You can skip a few steps straight to the demo here: http://www.joinmicrosofteurope.com/TreemapDemo/
Wow!
Putting this in the context of PerformancePoint, remember that you can get a similar visualization in PerformancePoint dashboards by using ProClarity Analytics Server’s “Performance Map” visualization.