Abstract: A portable electronic device includes a housing, a processor supported by the housing, a memory coupled to the processor, and a communications transceiver coupled to the processor. The transceiver is configured to support voice conference calling between more than two parties. A program stored in the memory and running on the processor is configured to provide a user interface on the display which is configured to display indicators representative of the parties on the conference call. The user interface includes the hold area configured to display indicators representative of the parties on hold and an active area configured to display indicators representative of the parties active on the conference call.

Abstract: A first hand-held computing device includes an analog input device and a processor. The analog input device generates analog input. The processor receives the analog input and converts the analog input to coordinates. The processor then maps the coordinates to a button for a second hand-held computing device and generates an event indicating a state of the button for the second hand-held computing device.

Abstract: A portable electronic device includes a housing, a processor supported by the housing, a memory coupled to the processor, and a communications transceiver coupled to the processor. The transceiver is configured to support voice conference calling between more than two parties. A program stored in the memory and running on the processor is configured to provide a user interface on the display which is configured to display indicators representative of the parties on the conference call. The user interface includes the hold area configured to display indicators representative of the parties on hold and an active area configured to display indicators representative of the parties active on the conference call.

Abstract: A system is described for generating an analog signal representing displacement information in a hand-held computing device. In one embodiment, a hand-held computing device includes a housing sized so that a user can hold the computing device during operation. The device also includes a display and a set of controls integrated with the housing so that the user can input information to the device's processor using his or her digits. At least one of the controls is an analog input device configured such that when displaced it generates an analog signal representing that displacement.