Thanks for all the demo impressions, people Please keep 'em coming!
Just a couple of things I feel like commenting upon at this point:
1) Thin aluminium can be a concern not just in terms of tactile feeling, but also in terms of resale value of a DAP, because aluminium (if it's too thin) can dent very easily, whereas steel or plastic would be more likely to spring back. I took excellent care of my DX100, and only had it a few weeks, but when I came around to reselling it, there was a noticeable shallow dent in the rear panel. On the DX100, that panel is replaceable (and economical), but this would not be true with the M.
2) Owners of ES9018-variant DAPs (DX100, DX90, etc.) will be familiar with the fact that the subjective SQ can change quite substantially depending on firmware tweaks. We all know that D&A staff watch this thread (and other forums, around the globe), so it will be interesting to see if they make any alterations to the SQ in the version 1.0 retail release firmware, in response to criticisms expressed by those who have listened to the alpha demo.