EppyGA
Touchdown! Greaser!
The next version of ForeFlight Mobile will require iOS 5.1 or higher. iOS is the operating system that powers Apple’s mobile devices. For the vast majority of ForeFlight customers, no action is required – you are ready.
http://blog.foreflight.com/2012/07/02/next-version-of-foreflight-mobile-to-require-ios-5-1/