1. A retention system for holding a flat screen device having front and back sides the front side having a screen for viewing, the retention system comprising:a resilient arc made of a unitary one-piece structure and having a concave inner surface, a convex outer surface and opposing ends extending inwardly, forming an arc opening;
an adjustable post extending from the inner surface of the arc toward the opening;
a pressure plate mounted to the adjustable post;
a pad attached with the pressure plate;
wherein a width of the arc opening is adjusted by bending the arc to create a width of the arc opening such that a flat screen device may be inserted at an angle within the arc opening then turned upright such that it is positioned flat against the pressure plate such that the pressure plate pad is configured to push against the back side of a flat screen device which is inserted into the arc so that the flat screen device is retained within the opening by contact between the pressure plate pad and the inwardly extending opposing ends of the arc by three points of pressure, at least one point of pressure supporting a front side perimeter edge of the flat screen device against the inner surfaces of the inwardly extending opposing ends of the arc without allowing the front side of the flat screen device to extend beyond the arc opening and without obscuring a user's view of the front side screen of the flat screen device.