It's funny, I'm finding Mike's review to be pretty sloppy and all over the place (he did say he's gonna be fixing it up in the next day or so, so I can understand). At first he says they sound more effortless and quicker than the HD800's and saying that they have a more enjoyable sound sig. Leads me to think it's very much like the HD800's, possibly better. But then he says they're dark; yes, dark, not warm. Then he goes on to compare it to the HD650's sound sig... I'm sort of confused... but the fact that these impress him a lot, and he seems to prefer them to the current flagship; it does make me very interested in them.
I'm anxious to hear more about his experiences with the headphone. I have a feeling it's new toy love syndrome, something that I have with whatever I buy, but eventually find flaws that bother me. If his position on these headphones stay as strong for the next few weeks... well, I'm anxious to hear more users' reviews and hear them myself!