The iPhone 3G became just the latest reason why Motorola is no longer king of U.S. cell phone sales. After losing its market lead Friday to South Korean Samsung, Moto Monday received more bad news: Apple’s iPhone 3G dethroned the slimline RAZR handset as the best-selling mobile phone in the United States.
The RAZR was the last big hit for the Schaumburg, Ill. handset manufacturer which has seen its market share slip away. Motorola slipped to second place behind Samsung, controlling 21.1 percent of the U.S. market, compared to the Korean’s 22.4 percent U.S. market share, according to research firm Strategy Analytics.
Apple’s iPhone 3G outsold the RAZR in the U.S. during the third quarter, according to consumer analysts at NPD Group. For three years, the RAZR was the top-ranked handset.

