Jeff Prosise shows a technique for creating reflection shader in Silverlight 3.
Last spring, I blogged about a technique for creating reflections programmatically using WriteableBitmap. For TechEd Europe week after next, I decided to go one step futher and create a pixel shader that does the same. Called WetFloorEffect, my shader can be applied in XAML the same way built-in shaders such as DropShadowEffect and BlurEffect are applied.