Yeah, it's pretty clear they've been working on it for awhile. I don't know if they started before or after the contest, but they must have had some idea of what they could do since they started testing on Intel in the first place. I'm sure they planned on releasing it if they had to, and may even have waited until the contest was over to see how far people could get, but more than likely just released it early so people wouldn't screw up their machines with the unofficial patch. It was probably planned for when they show what 10.5 can do since it's a feature of Leopard, as a beta to be tested with Tiger.