This tip isn’t exactly a new feature, as it’s been around since day 1 of the iPhone, but it is a handy one that I get asked about quite a bit. If you have something on your iPhones screen that you want to take a picture of to send to someone, just click the Home and Power/Standby button at the same time and release quickly. If you did it correctly, you will hear a camera noise and your screen will flash white briefly.
This will place a screen resolution image into your camera roll that you can now email or upload. This comes in handy for bragging about that latest Doodle Jump or Peggle score, or showing off your current playlist or song choice to your Facebook or Twitter followers.