After installing the new iPhone software (or being the owner of a 3G iPhone), you can easily take and share screenshots of your iPhone - no additional software needed.

To take a screenshot, hold down the home button while quickly pressing the sleep/wake button at the top of the phone. The screen will flash briefly and an image will be saved in your Camera Roll.

You can then easily share your screenshot by e-mailing it using the share option in the Photos application.

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