I'm gonna make a prediction (hear that guys, PREDICTION . . . but I'd be willing to bet on it). . .
IF the document earlier that outlined all the specifics of the 2.1 update, which has now been pulled, was posted at or around noon EST, I will predict that the 2.1 update will begin to push for those select few getting it first at midnight tonight. Why do I think this? Someone has already hinted at it elsewhere, but if the specs which have seen been taken down were posted at or around noon, it would make sense for it to be a simple coding or programming error where the person put "pm" rather than "am" for the display time. Since noon wasn't the case, and Motorola has already confirmed they took the document down because it was supposed to coincide with the release of 2.1, it makes sense to at least speculate that the update will push at midnight EST. At least that's what I'm predicting will happen.