That's right, it looks like Blizzard pulled it off-- almost simultaneously, within the same 24 hours, they were able to both get a game on shelves, get it home with players, and let them sign online. Lag problems aside, that's a huge task, and I'm not sure they could have pulled it off any better.
As a final note on the launch, Rushter over at WorldofWar has done a little YouTube crawling, and pulled up a list of video from events all over the world. I thought things were crazy here in the US, but look how insane they got in Germany.
Look at that line! When I first heard the 5 million copies in the first ten days figure, I was skeptical. But with lines like this all over the planet, it might just be true.
Previously: Midnight launch events