Here’s an article in reference to the issue here, and a direct quote from Apple on the issue, denying any DRM or other authentication...
http://www.pcmag.com/article2/0,2817,2343217,00.asp
Thought so.
I don’t care what Apply denies, but if we see this same stunt happen when the iPod nano and classic are replaced this September they are going to run the risk of a lawsuit charging violation of the Clayton Antitrust Act—and it will be brought by a long list of third-party headphone manufacturers!