The present invention relates to an apparatus for adjustably mounting a tablet PC or other electronic device for hands-free emplacement in a diverse range of environments. This continuation-in-part application emphasizes varieties of a subcombination apparatus that provides integrated mounting and adjusting means for use either with the present invention or with separate unspecified other devices and objects. The apparatus of the present invention attaches to various surfaces via a mounting means comprising an adjustable suction cup connected to hanger rotatable in multiple dimensions wherein the movement of adjustable parts is regulated by built-in, easily-reversible locking mechanisms. The invention, used with or without the present subcombination apparatuses, enables stable and precise positioning of personal electronic devices in almost any situation where rapid, impromptu, or reversible deployment is desired.