The invention provides an apparatus for adjustably mounting a tablet PC, portable personal computer, or flat panel video display, which is particularly suited for use during travel and in rugged conditions. The apparatus enables stable and versatile emplacement of a tablet PC by incorporating multiple independent adjustment and attachment elements. A mounting means, such as a suction cup assembly, is attachable to various surfaces and is connected to a hanger from which cordage or straps descend to a suspended frame. The frame features clips, resilient spacers, and adjustable dimensions to securely hold any commercially available tablet PC therein. The frame may further comprise various swappable stabilizer elements to separately regulate the orientation and attachment of the tablet PC to a surface. In a preferred embodiment, the apparatus is mounted to a windshield and the frame positions the tablet PC over the center console in an automobile.