A method for operating a user interface for switching between computer applications is provided. The method may include displaying first, second and third navigation controls. The first navigation control may include entity selectors, the second navigation control may include application selectors, and the third navigation control may include sub-application selectors. The application selectors may be associated with the entities in the first navigation control and the sub-application selectors may be associated with the application selectors. An application associated with sub-application selector may be launched upon selecting the sub-application selector. The state of an application may be stored and retrieved upon switching between applications so as to enable fast switching between applications.