PixelBender Filter required... I think?

If you read my blog you know that I don't currently have a Mac. This is true, however I have used enough of them to really fall in love with some of the UI details. One of them is the way in which when you minimize a window it kind of warps as it shrinks into the dock.

I don't know much about PixelBender effects, but this seems like something that could be accomplished. I am not even sure what keywords to use on Google to search for such an example. So, if you know of an example of how that effect might be accomplished in Flex using PixelBender (or without using PixelBender) I would really like to see it.