That's pretty cool after a couple of levels of getting the hang of it. Unfortunately for me after about 13 levels of it the frustration got the better of me. The rapid mouse movements just to the edge of the window are just too finicky... twice I clicked programs in my taskbar... twice I clicked the "back" button on my 5 button mouse... and at least once I clicked on a menu button while diving. Panic!
Does silverlight have a fullscreen option?