Lauren Leasure, who was one of the people in charge of the attempt at Dragon*Con, commented, “It's only fitting that controversy follow Michael Jackson even after his death. We followed the rules and guidelines 100%, whereas a lot of the lines were blurred in the Mexico attempt. While we may be discouraged for just a moment by Guinness' ruling, we remain happy and positive.”
Lauren also observed that the record, while it was one of the goals of the attempt, wasn't the only one. She further commented, “The most important thing here was not to beat a world record, but to have a blast. The real challenge wasn't to beat the world record, but to pull together 903 people, teach complicated choreography, and execute in less than three hours. THAT was the real challenge and we were very successful in doing so! So, while this may sound like a very cliché 'We gave it our best shot' speech, it's not. We genuinely had the time of our lives while bringing together people from all countries, not just one.”
There's an interesting article that went up yesterday that gives a full run down of the results:
http://www.roddenberry.com/communityblogs/index/detail?id=435