Somebody please explain to me the point of Silverlight? Does it have a raison-d'etre, or is this just a Flash rip-off? I was forced to install it when I wanted to try PhotoSynth (which is cool), but I dont get it. Does Microsoft have to do a me-too of everything? Isn't Flash good enough? Now I have two players on my Mac, one I use, and one I don't need.