An icon can be created for a contact (e.g., an individual(s) or an entity) and presented on a user interface of a mobile device, such as a “home screen.” The icon can be used to retrieve and display contact information. The icon can also be used to invoke one or more applications that are personalized to the contact. The icon can be modified to display information related to the contact. In one aspect, an icon associated with an entity can be temporarily displayed on the mobile device based on the proximity of the mobile device to the entity. The icon can be used to retrieve and display information related to the entity. Additionally, the icon can be removed from the display on the mobile device when the mobile device is no longer within a certain proximity of the entity.