I see from my site stats that a few eager GenCon 2011 attendees/players found my old post on CHAOS D&D, some through a google search. Thanks for the interest! I've gone back and edited the plot info out of the entry, but reading it may still give a way some spoilers on how the game itself is played. Though that in and of itself is not a secret (CHAOS has been running for years at ShaunCon and KC Game Fair), it's still more fun for some people to experience it first hand.
As to the plot info earlier readers or players may have read/played, CHAOS plots have a way of developing over time (and even in game), so I'm sure it won't be exactly the same this time around.
For those who aren't following all of that, the Roleplayers Guild of Kansas City, Ltd. is running two rounds of its long running Chaotically Hysterical Association of Systems (CHAOS) event at GenCon 2011.