Described by Marware as an "Extreme Gaming Controller," GameGrip ($50) is a steering wheel-like frame for use with widescreen App Store games. While some iPod touch and iPhone owners have dismissed it outright due to its high price -- you can get a modern wireless console game controller for less -- the company attributes this to the costs of the multiple parts inside. There's the hard plastic shell, two silicone rubber side grips, two silicone rubber…
