A mobile terminal that allows sliding between housings in two directions. The housings may slide in longitudinal and lateral relative directions. One position, for example, may be for PDA use with an alphanumeric keypad exposed and another position may be for phone use with a numeric keypad exposed. One housing may include pins that extend from one surface and another housing may include grooves in an opposing surface to receive the pins. At least one longitudinal groove may be provided, and in one embodiment two lateral grooves are provided to accommodate two longitudinally aligned pins. An overlay may be provided that may be exposed to cover keys with numbers or navigation indications when the housings slide longitudinally and may remain hidden when the housings slide laterally with respect to each other. A casing may be provided that substantially encloses the bottom housing when in the closed position.