According to research group iSuppli, the iPhone outsold all smartphones in the U.S. in July, accounting for 1.8 percent of all U.S. handset sales. In its first full month on sale, the two models of the iPhone sold more than RIM’s BlackBerry series, the entire Palm line, and any individual smartphone from Motorola, Nokia, or Samsung. In addition, sales of the iPhone equalled those of the LG Chocolate, the most popular feature phone in the U.S., iSuppli said. The firm reiterated its forecast that Apple would sell 4.5 million iPhones this year. “While iSuppli has not collected historical information on this topic, it’s likely that the speed of the iPhone’s rise to competitive dominance in its segment is unprecedented in the history of the mobile-handset market,” iSuppli said. According to the research group, most iPhone buyers in July were college-educated males under the age of 35, and a quarter of iPhone buyers switched operators to purchase the phone.