Fox for #102: SecurityException happens if .apk of first OpenStore is installed on device after an app with OpenIAB
Fix for #123: Amazon: check currentUser.equals(response.getUserdId()). Assume PurchaseResponse and PurchaseUpdatesResponse can come only after GetUserIdResponse
Samples: better to use android:configChanges="orientation|screenSize", otherwise activity restarts and in-app flow is dropped
Fix for #115 use applicationContext for all interaction with Android
unity asset store labels, meta files
Fix for #125 comments about Amazon and Samsung don't need public keys
using getInstallerPackageName