I just saw the number of donors a couple minutes ago... 999,841.
You can check out the number here on the index page. They are updating that number in real time. Tick tick tick...
If I remember correctly, Obama is seeking a million different donors, so repeat donations from people like me won't change the number.
Needless to say, the one million donor threshold is without precedent in American politics. We may well see it happen in the next couple of hours (see below). It sure would be nice if Night Owl Kossacks could push Obama over the top, so that we could greet the dawn a million strong...