. iPhone combines iPod, phone, Internet and more into a single device.
. E-mail and surfing the Internet typically was between three and five times as fast using AT&T’s 3G network as it was with the older AT&T network to which the first iPhone was limited.”
. It also has a standard headphone jack so no clunky adapter is required for your favorite non-Apple headphones.
. The screen is multi-touch, which means you can press different parts of the screen at the same time to perform different functions–a rarity among touch-enabled devices and a feature that opens up a number of opportunities for application developers to get creative in their programming.
. During a call the touchscreen automatically detects when it is near your face and turns itself off until you take it away again.
. Aside from a volume control and ringer off/on button on the side, a “lock” button on top, and the central “Home” button on the front, all control of the iPhone is carried out via the touchscreen display.
. Accelerometers inside the iPhone mean that if you turn it on its side, the screen will automatically rotate to display in widescreen.
Source : Reviewers assess Apple’s third-generation 3G iPhone
iPhone 3G review: Great But Not Perfect