In some embodiments, a method includes obtaining an object code of an application executed on a mobile device. The application is created by an author different from an operator of a data source. The method includes loading dynamically at least one intercept point into the object code, wherein the intercept point is to detect a predetermined input gesture. The method further includes, responsive to an input gesture being received within a context of the application at the mobile device and the input gesture matching the predetermined input gesture: (1) overlaying a user interface within the context of the application, the user interface permitting selection of data items from the data source; (2) determining from a selection signal received at the mobile device, a selected data item; (3) responsive to the determining, loading the selected data item into the context of the application; and (4) removing the user interface overlay.