Speck Products has unveiled its PixelSkin case for the iPhone 3G. Made from lightweight, form-fitting rubber, the PixelSkin offers slightly thicker corners for extra bump and drop protection, while the textured tile pattern provides extra grip. The case offers access to all ports, controls, and sensors, and the front features a raised ridge detail to help protect the iPhone 3G’s screen when it is placed face down. “The introduction of the…