Powerstand arrives folded down, measuring about eight square inches. Despite its size and aluminum construction, it’s surprisingly light. Attached to the rear of the base is metal arm; lifting it up reveals the attached T-shaped iPad cradle. Lined with rubber, there’s a Dock Connector plug at the bottom and wings to secure the sides of the iPad; Mophie includes a pair of replacement grips in case the ones that come attached wear out. It’s…