iOS 5 only for iPhone 4 And 3G

The ravages of time even on slow, due to the more manageable form (tastes differ) yet many more used and popular, iPhone 3G model. The rough rule of thumb when it comes to software support of the individual devices, is roughly 2 years. After that, it is difficult current systems to "obsolete" technology to bring stability to work. Finally, extensive applications and newFunctions always hunger for