Hi all, well I am thinking about getting an iPhone.But I am really messed up that sould I buy iphone 4.0 os or iPhone 3GS because they both are good in competition with each other that is why it is not a easy choice to make here. If it’s an upgrade, then I’m planning to get the 3GS or 3G. However before making my decision I want to know what is a major difference between iphone 4.0 os and iPhone 3GS.Moreover I want you guys to help me in making my mind for one of it kindly share your opinion on it and help me out of it.