A mobile device includes a camera, a user interface system, and a processor communicatively coupled to the camera and the user interface system. The processor is typically configured for running a first application. The first application is typically configured for (i) accessing the camera, (ii) upon the initialization of the first application, initializing the camera, and (iii) maintaining the camera in an initialized state as long as the first application is running. The application may be further configured for focusing the camera and maintaining the camera in a focused state as long as the first application is running.