A mobile information device may execute a Java MIDlet or a non-MIDlet application. The mobile information device may further include an object-oriented application program interface that allows one or more object-oriented object classes to allow input and output data to be communicated between Java MIDlets in different MIDlet Suites and between non-MIDlet applications. The application program interface may be used to allow applications to access a universal message handler executing on the mobile information device.