According to Craig Hockenberry of The Iconfactory.
http://forums.appleinsider.com/t/15...ng-to-support-ios-7-over-half-will-require-it
http://forums.appleinsider.com/t/15...ng-to-support-ios-7-over-half-will-require-it
The findings are based on a survey of 575 iOS developers by Twitterrific developer Craig Hockenberry of The Iconfactory.
Hockenberry noted his own plans to Twitterrific, working with designer David Lanham. While he described the shipping version of the app as "feeling old and clunky," the results of overhauling the interface to reflect Apple's new design for iOS 7 are "stunning."
He added, "as you?d expect, it?s a lot more work than previous versions of iOS" for developers to both support and fit in with the new appearance of iOS 7.
Additionally, Hockenberry noted that "the depth and breadth of the changes in iOS 7 makes it difficult to support older versions of the OS," resulting in the just over half of those replying stating that their updates would require iOS 7 in order to work."Now?s the time to start thinking about upgrading. Many apps will require a device capable of running iOS 7".