Even though I joked that these mules look like my Model S on a winter morning, so put it to production guys job well done, even I assume they are not final panels all around. I would expect some to be near final, though, and more importantly I would expect them to offer potential clues of the final product through showing us glimpses of design direction and progress. Most importantly, they're the best we have so far. Like the man himself said, the Internet is very good at this. Over the past decade or so, an Internet cottage industry formed around Apple, pretty much is by now able to predict with 100% certainty what the next iPhone looks like from a partial shot of a microphone circuit board. We're not quite there yet.