1. A system for customizing notifications available through a display of a locked mobile computing device, said system comprising: a memory area for storing one or more notifications received by a mobile computing device while the mobile computing device is locked, said memory area further storing configuration data, said configuration data describing notifications to present to a user through a display of the locked mobile computing device and said configuration data further defining a subset of functions within an application program associated with one or more of the notifications, said subset of functions to be available for execution by the user while the mobile computing device is locked, said configuration data further identifying a keyword; and a processor programmed to: receive the configuration data from the user of the mobile computing device; access one or more of the notifications stored in the memory area; alter one or more of the accessed notifications based on the configuration data stored in the memory area, the processor being programmed to alter the accessed notifications by filtering the accessed notifications based on the keyword identified in the configuration data that specifies a limited functionality of the application program available without unlocking the mobile computing device; present the altered notifications to the user through the display of the locked mobile computing device; enable the subset of functions within the application program through the display while the mobile computing device is locked, whereby the user interacts with the application program via the presented altered notifications to perform at least one of the subset of functions within the application program while the mobile computing device remains locked; and obtain, responsive to the user interaction, additional information about the presented altered notifications based on the configuration data to perform the at least one of the subset of functions the mobile corn device remains locked.