No mobile platform or software package is without its bugs, and Apple's devices are no exception. Recently reports have began to come in that show that some Apple users can not access iTunes or the App Store on the iPhones, iPods or iPads. When attempting to log-in the users are met with an error that reads: "FATAL::Unable to process your request. Please try again."
Additionally, Apple users trying to access the services from their Mac devices have been met with the same error, and it appears that the issue reaches to the iBookstore as well. Apple has not acknowledged the error on any of its Status pages, and no official statement has been made. The issue does appear to be fairly widespread, and I am guessing that an authentication server somewhere may be broken.