I have been having trouble with my iPhone 4 for the last 2 months. The main issue is the Home button not working properly. It won't work when I push it most of the time and other times it will think I have pushed it twice when i have only pushed it once. So I'm thinking I may need to see what the Apple Store can do for me. My question is this: I have heard of Apple Stores replacing iPhones with this problem, What are the chances they would replace mine with a White iPhone 4 if I asked? Or does it have to be Black??