We are all here in Cupertino today to hear about the next stage of the Apple (NSDQ: AAPL) iPhone, but Steve Jobs treated us with a few statistics before the show kicked off:

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—On Saturday, 300,000 iPads were sold. As of today, 450,000 were sold. Jobs said: “Best Buy is out of stock…We are hand to mouth.”

—4 billion apps have been downloaded from the App store, and there’s 185,000 apps in the store. There’s 3,500 iPad apps.

—250,000 iBooks were downloaded on the first day, now it’s up to 600,000.

—50 million iPhones sold, and 85 million iPhone and iPod touches have been sold altogether.