Wow, that's amazing! I'm always amazed at what people can do with obfuscated code. (I had kind of hoped that each successive frame was Perl code to generate the next one, but that would have been beyond impossible I suppose. It's impossible enough!)
I wouldn't put that down to Perl alone, though. I saw a C program once which calculated PI (without the benefit of math.h), and the text of the code was a circle.
Since we're alternatively bashing and uplifting Java and Perl here, anyone else have any other favourite/hated languages? Haskell, Lisp, assembly, HTML?