iOS 5 system software updates for iPhone and iPhone can not only over Wi-Fi wireless downloads, but also via 3G. It would not hold for all over-the-air updates, but for minor updates.Reported that the website 9to5Mac , which have not been able to figure out where the distinction between major and minor update will sit. At the start of a system update you get a warning screen that the iPhone is [much percentage] battery and at least 500 MB of free disk space should have.
