I have an iphone 3gs and I was enjoying this phone but after some time I realized that my apps take longer to load, mail messages open slower, the whole system just feels more slow. But I have heard a rumour that the new OS4.0.1 fixes the speed issues with the iPhone 3gs, so should I continue with it or get an iphone 4.0.1 update? If someone has any idea or know about it please tell me also