Last year, when Apple unveiled its iPhone and made it available in the United States exclusively from AT&T, the debut sent ripples throughout the cell phone industry.
Handset maker Palm suffered as consumers swooned for Apple's phone, according to surveys by consultancy NPD. AT&T benefited by pulling subscribers from rival carriers Alltel and T-Mobile USA.
So will Apple's new phone, the iPhone 3G, have a similar effect? Early evidence since the new device's July 11 debut suggests it will have even broader impact, in part because the entry-level model sells for US$199, compared with US$499 for the original version.