Once upon a time eager rumormongers would download the latest iteration of the next generation of iOS, and like examining goat entrails to determine the next Caesar, they would delve into the USBDeviceConfiguration.plist to divine upcoming hardware products from Apple. But, with iOS 6, this is no more. Oh sure, the file is still there (and a previous version jokingly referred to non-existent software), but all traces of upcoming hints have been removed.
Tim Cook wasn't kidding about doubling down on secrecy, and I have a feeling this is but the first snowflake to fall upon the tip of a silent iceberg that will soon seal the leaks bubbling around Cupertino.