Abstract: The present invention is a system comprising a handheld computing device case, docking port holder and port housing, that when assembled together operable to connect a handheld computing device fitted within the case with a docking end integrated with the docking port holder whereby the handheld computing device is connected to the one or more ports of the port housing. The connection between the case and the docking port holder is created through engagement along a guide rail path that forms a stable connection that holds the handheld computing device in a position whereby it is securely held and supported, and is operable as a computing device in a stationary environment (e.g., a building, etc.) or a mobile environment (e.g., a vehicle, a boat, or any other moving apparatus). The one or more ports incorporated in the port housing provide connections to one or more peripheral devices operable with the handheld computing device to operate as a computing system.

Abstract: A signaling device comprises a housing, the housing being arranged for mounting on a roof section of an emergency vehicle, the housing having an upper housing portion and a lower housing portion, a transfer portion for transferring the upper housing portion relative to the lower housing portion between a closed position and an open position, the upper and lower housing portions being further provided with complementary peripheral regions which, when engaged in the closed position, form a weather resistant inner chamber, the upper housing portion having an inner surface, a plurality of signaling elements mounted on the inner surface, the inner surface and/or the signaling elements being operable to be visible to oncoming traffic when the upper housing portion is in the open position.