Someone apparently wrote a Flash emulator in JavaScript, with its own bytecode interpreter and all. It's probably the kind of benchmark we ought to be looking at testing, performance-wise, because it will easily become very slow for demanding flash apps.
http://apple.slashdot.org/story/10/06/01/1748200/Smokescreen-a-JavaScript-Ba...
http://smokescreen.us/demos/sb45demo.html
- Maxime