Don’t let the short lines fool you, the iPhone 3G S sold a lot more than was expected. This is largely due to the number of preorders made. Since many people just had the device mailed to them instead of going to the store and waiting hours or even days to buy it.
One analyst estimated that Apple would sell 500,000 devices its opening weekend. Another suggested 750,000. Both of those were wrong. Like the iPhone 3G Apple was able to sell over 1 Million devices its opening weekend.