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.
Initially, Facebook was open to only Harvard students. Dustin Moskovitz, Mark Zuckerberg's roommate, helped spread it to other Ivy League colleges. [more...]