Let's not talk about anecotes; let's talk about global iPhone sales. The iPhone was launched during 2007Q3. During 2007Q4, the first quarter in available for the entire quarter, Apple sold 1.12 million iPhones. During 2008Q1, the following quarter, Apple sold 2.32 million iPhones, more than double the previous quarter. Since is one of the few quarters in which global iPhone sales improved quarter-over-quarter mid-cycle. The figures are available here.