Apparently it is an authentication chip. As much of an Apple fanboy as I am, if they really are going to try and make 3rd-party phone manufacturers pay to play, then that is just not froody.
Back to Ayre, they've recently put two interesting bits of reading up on their Web site: A rundown on the asynchronous USB implementation in the DAC (sounds like it's using the TAS1020B?) as well as the details of the MP filter that's in all their new digital products.
Yeah, the Minerva is a DAC2 with a machined face plate and fancy feet. I saw an online chat with Daniel Weiss a while back where he admitted as much.
The Computer Audiophile guy rated it the best USB or FW DAC he'd ever heard but in the end preferred the Lynx/Alpha DAC combo.