An early estimate by Oppenheimer analyst Yair Reiner suggests Apple may have sold as many as 1.5 million iPhone 4s on just its first day of sales. Assuming that Apple sold about 750,000 phones in the US, including 600,000 pre-orders, 100,000 walk-in purchases, and 50,000 Best Buy units, he believes that the number roughly doubled when including international sales in the few countries that also had the iPhone 4 in its first-wave launch. Reiner was cautious and admitted that estimates of Apple launches had "become something of a national sport" with a large amount o
