Abstract: An ergonomic housing for a handheld device is provided. The device includes an ergonomic housing that is shaped to fit comfortably in the palm of a human hand, while simultaneously allowing fingered tactile operation of a set of key members on the face and lateral portions of the housing. The device is particularly useful for one-handed operation of portable devices utilizing a keypad where operation of such a device using two hands is not desirable. The position of keys on the housing facilitates minimal movement of both the fingers and thumb of the operator to operate the keys of the device. Such manipulation of keys may also be accomplished completely by touch, due to the uniquely shaped keys strategically placed in rows on the housing face within close proximity of the operator's natural finger positions and additional keys placed within close proximity of the operator's natural thumb position.