Apple has revealed its new iPhone, which operates faster than the old model, boasts a new operating system and costs less.

The company also announced that it's cutting prices on several laptop models.
The new iPone 3G S is up to three times faster than the existing phone and features video with editing and sharing functions.
It also boasts voice control, a digital compass and longer battery life.
Two new models will be available, or 16Gb and 32Gb.
The price of the old phone will also be cut.