Localytics: More Than 20 Percent Of iPhone 3GS Owners Still Have To Upgrade To iOS 4

In the smartphone world, it is generally a good thing to keep everyone on the latest operating systems by pushing out upgrades. To the extent that iPhone or Android can get their installed base of users on the latest and greatest OS, the more those users can enjoy new apps built to take advantage of the new features of the OS. But when it comes to pushing software upgrades, Android has the upper hand because it can push them over the air, whereas the iPhone still requires users to download the upgrade to their computer first and then transfer it over to their iPhones with a cable. Some people just never upgrade. Apple released its latest iPhone operating system, iOS 4, back in June. It came installed on new the iPhone 4, but was also pushed through iTunes to existing iPhone 3GS owners. Yet two months after the release, more than 20 percent of iPhone 3GS users still had not upgraded, according to an estimate by mobile analytics firm Localytics .