
First of all, the Griffin FlexGrip is a dual-color case for the iPod touch and 3rd generation nano, which "wraps your iPod in durable, non-scratching two-tone silicone, textured to make it easy to hold onto." This case protects your iPod's front and back from scratches, dents and dust, while allowing full access to screen, jacks, and controls.
The FlexScreen isn't much different from the FlexGrip, only that this case is made of crystal clear polycarbonate, and it only fits 3rd generation iPod nanos. The textured silicone allows sure grip, while the face shield protects your beloved iPod from scratches. Obviously, you still have full access to screen, jacks, and controls!
The FlexGrip is priced at $14.99, and the FlexScreen can be purchased for the same price. Happy shopping!