One of the coolest things about WPF is the animation power it has. WPF has moved past the old Win32 and GDI/GDI+ libraries and instead uses DirectX. This allows for more powerful animation and graphics.
The thing to remember though is in order to have a nice looking animation, it should not lock the UI while running. If it does, you probably won't have a chance to see the animation happen!
So, here is a small sample of how to do this: