All the cool features in the world won’t do you any good unless you can figure out how to ... Apple had some things to address with its second iPhone. The biggest feature of the iPhone 3G is right in ...

This update the popular iPhone 3G upgrades to a faster processor and ... and adds a compass and voice control. The design and features are otherwise similar, including GPS, large multi-touch ...

This update to the original iPhone adds 3G data, GPS, and a new shape on the back side. An updated OS supports third-party software, plus corporate email, sync, and VPN features. Other features ...

Sharing battery power on an iPhone generally refers to transferring or sharing charging capacity between devices.