Is it that hard for Apple to offer developers the option to transfer their users to App store licenses. As the app store transitions to our 'central' place to find, buy and update apps we should be able to transfer over past purchases. Since the app store checks for a license file in the app bundle, wouldn't it be easiest for Apple to allow developers to create a different type of file that the App Store would recognize as being paid and allowed up update through the App Store mechanism? Thoughts?