Very simple. I'm amazed how many people are confused by this. The first million were sold in 3 days, but not by ATT. ATT sold somewhere in the 300,000 neighborhood in the first three days of the initial launch. And now ATT has said that they sold nearly twice that many this time. So ATT sold between 5-600,000. Apple sold 1 million worldwide, about half of which were in the US, and half in other countries.
It's been another 7 days or so now, but we have no way to extrapolate the first million in 3 days to the next 7 days, because we have no way to know how many were made and stocked for day 1. We do know that they've sold every iPhone they've made since July 11, but there's no way to know how many that was. We MAY get some word once they reach 2 million, but I'd bet against Apple revealing that info.
Get it? It's not very complicated.
actually it's gets really complicated and you're not interpreting it right either . to quote what att is saying
AT&T says sales of the new iPhone 3G, after 12 days, and despite short supply, are nearly double the levels at which AT&T sold the first iPhone last summer.
so this refers to the number
att is selling iphones, not the number iphones are selling in the us. we have no idea what number of iphones were sold by att last summer, i've assumed thus far that most iphones were sold at apple stores, second most important channel being apple online store and att outlets were getting relatively small number of iphone deliveries and didn't sell as much as the other 2 channels.
second it seems to be referring to the rate at which att is selling iphones
after 12 days, not during the 12 first days. and the other rate offered is the rate sold during the summer 2007.
iphones were sold during last year 270,000 iphones were sold during the first days, after which it took about 70 days to reach 1m, so the rate iphones were sold last summer would be about 10k iphones sold / day total, counting all the channels. how many of those were sold by att? probably less than 1/3, so max of 3350/day.
so it seems to me that they're saying that att is selling at rate of about 3000-7000/day.
now for the other confusing number of 1m iphones sold worldwide. that is the number
apple sold during the first 3 days. so that's what apple sold at their stores + what they sold to carriers (att, o2, t-mobile, vodafone, telefonica, etc). it's not the number of iphones that were bought by customers during those first three days. it can include iphones not yet delivered to the carriers, and it may even include orders by carriers that were not part of the initial launch.
this is everything but simple!