Take a photo or video quickly. From the Lock screen, put your finger on the camera icon and slide up. The Camera app will be launched immediately without going through the rigmarole of unlocking the screen and opening the app. The same is now applicable for the Music app.
The name "Siri" is of Norwegian origin and is a short form of Sigrid meaning a "beautiful woman who leads you to victory". So now you know what Siri means! [more...]