Sorry to rain on the parade, but it does occur to me that the "official" numbers that Apple is posting could be totally off--that is, I'm sure the numbers themselves are accurate (no reason to lie about this, and it'd be a P.R. disaster if they did), but the *timing* on everyone's chart could be off by a half-hour or more, due to simple server & bandwidth strain. The server glitch last night (around 7pm) is a case in point--the number spike didn't show up until around the 20,000-PAST-the-giveaway point on that one.
In other words, it's conceivable that everyone (including myself) who is doing madbuying just before the number crosses the 100K point could actually be making our purchases at the exact *wrong* spot!
Of course, there's no way of proving this one way or the other, and it's still fun to watch, and you *are* still getting the songs you purchased as normal, so I guess we keep watching the charts & graphs... 🙂