http://www.fsf.org/blogs/licensing/more-about-the-app-store-gpl-enforcement http://www.fsf.org/blogs/licensing/more-about-the-app-store-... goes into more detai

http://www.fsf.org/blogs/licensing/more-about-the-app-store-gpl-enforcement http://www.fsf.org/blogs/licensing/more-about-the-app-store-... goes into more detail, but the summary is: > Apple's Terms of Service impose restrictive limits on use and distribution for any software distributed through the App Store, and the GPL doesn't allow that.