Craig Hockenberry asked developers if they were actively working on an update for their app to add iOS 7 features and compatibility—95% answered yes. What’s more, 52% of developers are going to require iOS 7 for their app. In other words, they are dropping support for all other operating systems.
I’ve been asked a lot about this strategy over the years and I’m in favor of it. Developers should offer their customers the latest and greatest as soon as they can. The only thing that would hold back a developer from doing that is the adoption rate of the operating system. Judging from the fast adoption rate of Apple’s operating systems, that doesn’t appear to be an issue.