Within a day or two of the iPad's release, we were dreaming of a way to mount the tablet in a car as a back seat entertainment system, and eventually improvised a solution. Now Griffin has released Cinema Seat ($40), its first stab at the same concept, and the results are mixed: the company has come up with an oversized gray faux leather and fabric frame that attaches to the metal pipes of a headrest with foldable, adjustable Velcro, functioning as…
