2.Text input:
For text input, the device implements a virtual keyboard on the touchscreen. It has automatic spell checking and correction, predictive word capabilities, and a dynamic dictionary that learns new words.The predictive word capabilities have been integrated with the dynamic virtual keyboard so that users will not have to be extremely accurate when typing—i.e. touching the edges of the desired letter or nearby letters on the keyboard will be predictively corrected when possible. The keys are somewhat larger and spaced farther apart when in landscape mode, currently only available using the Safari web browser. Not focusing more on texting has been considered a chief weakness of the iPhone, while at the same time others believe the virtual keyboard to be a bold step and a worthwhile risk.The lack of a physical keyboard allows for the keyboard to be optimized for different applications and languages.And also support for multi-recipient SMS
Preview Of Sending SMS
Battery Life:
The iPhone 3G's battery is stated to be capable of providing up to seven hours of video, six hours of web browsing on Wi-Fi or five on 3G, ten hours of 2G talk time, or five on 3G, 24 hours of music, or 300 hours of standby.
The iPhone features a built-in rechargeable battery that is not intended to be user-replaceable, similar to existing iPods,If the battery prematurely reaches the end of its life time, the phone can be returned to Apple and replaced for free while still in warranty,one year at purchase and extended to two years with AppleCare.
The cost of having Apple provide a new battery and replace it when the iPhone is out of warranty.
Though the battery replacement service and its pricing was not made known to buyers until the day the product was launched.
