iPhone color bias: intentionally done by Apple? Can it be solved by an upgrade?

Now many new users who have got the 3G iPhone find that the screen of the new iPhone has a slight yellowish tone, and consider this as a hardware defect. However, Apple's official opinion indicates that the colors of the 3G iPhone are intentional. Apple stated that the display used in the first-generation iPhone had a bluish color, and the 3G iPhone improves this issue with more accurate colors. Additionally, the new display has deeper blacks and clearer images. Details and solutions are as follows.