Visualization of Event Route

Recently, Visual Studio 2010 has been released from MS.
I have interest about enhancement of WPF features, in the other hands, I heard Windows Form had become the obsolete stuff.
Although I still use .NET Form technology preferably now, I may change mind of development method.
But, I can't predict how long term I need to acqire WPF basic technology, and can't estimate how much this technology will be useful in my job, task, business...

Now, I make simple local app by WPF framework, so WPF has concept "event routing".
Event routing supports strategy of "bubble", "tunnel", "direct", and upper can be expressed by XAML.
That means IDE knows route of event propagation.
In fact, I think route of event propagation can be visualized, so this info is useful for WPF developers.