Also, I'm 90% confident that it is possible to load animated GIFs in at runtime. The Loader class won't handle it, no, but it should definitely be possible to run the image data through a ByteArray and spit out BitmapData for each frame of the animation and display the animation that way...
...and then make a navigateToURL() call that you pass a blank page to. Now of course this assumes the user is a power-user like me who has their browser set up to open new windows in a new tab, but its something to consider...
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