[FINAL UPDATE: The picture hiding underneath the message has been revealed! Find it at the end of this post]
[UPDATE 2: It's now down to 1 missing letter and there is a photograph underneath that may be revealed...?]
[UPDATE: Message solved: See below!]
I visit my own site a lot more often than I do WhySoSerious.com, one of the viral sites for The Dark Knight, so I figured I would just keep an eye on what’s going on with that Halloween pumpkin with the candle that’s burning down right here. 
Here’s what the message looks like as of 3:20PM EST:
The final message:
THE ONLY SENSIBLE WAY TO LIVE IN THE WORLD IS WITHOUT RULES
To see the image that was hidden beneath the message see below…
Click on the above image for the final reveal.
On the website, if you then click on that image, you’ll be greeted with yet another viral marketing bit (these guys just don’t stop!) on a website called Rory’s Death Kiss:
Click here to visit WhySoSerious.com.
Thanks to the amazing gathering of intense Batman fans over at the Superherohype forums!!!
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Am I missing something or is everyone else? It seems they were calling for a publicity stunt to get the fan base involved in promotion of the movie. They wanted pics of people dressed as the Joker in various locations, poses, and quantities. This is like the world’s cheapest promo ad, creating curiosity among people and ownership among the fanbase. Also, once they publish these pictures, a feeling that “the Joker is everywhere.” Or “Where is he going to turn up next?”
I imagine that the best pics will earn people a t-shirt or screen saver or a chance to visit the set.