Although most cases are meant to be at least somewhat protective, it is rare to see one that the developer has deliberately subjected to abuse for marketing purposes. That's what G-Form has done with its Extreme Sleeve for iPad ($60): this seemingly simple sleeve -- available in yellow or black -- has withstood having a bowling ball dropped on it and being thrown from a plane. What makes it so protective is the materials it is composed of. Poron XRD…
