20% more than the iPhone 4S managed. (iPhone 3GS: 1,000,000 orders, iPhone 4: 1.7 million, 4S: 4,000,000 sales (all first 3 days after release)) After filtering out the inevitable Apple PR hyperbole, I can't work out whether this is good (largest iPhone numbers ever in 3 days after release!) or bad (terrible fall off in growth rate of 3-day iPhone sales after release!). Take your pick :)