Why is iOS 4 the worst possible thing I could have done to my iPhone? I went from having a quick, cool and slick iPhone 3G to a slow, buggy and annoying one. It takes me 10 seconds to load text messages and I miss calls because when people call and I slide the slider, it takes a few seconds to register. Apps frequently crash, and if they don't crash they run incredibly slow. I was listening to a song on the radio and tried to use the app Shazam to figure out what it was, and the song was literally on for a minute but Shazam was too slow to record the 10-second clip it needs. Thus, I hate my iPhone 3G now. Is there anything I can do to speed up my iPhone? Or if I were to downgrade (if this is even possible) can I keep all my texts and stuff?