I'm quite positive about the X1D overall. Looks like a great camera, and I want one too!
The lack of focal plane shutter doesn't bother me too much personally as I'd rather have the option for faster sync speed with the leaf shutter lenses anyhow. I do expect to see this camera be fitted to different technical cameras because of the shallow throat, and in those cases the users might like try all kinds of different glass. But I guess you can fit almost anything to different mechanical shutters so no real worries. If Stefan doesn't want to make active adapters I'm sure others will.
The EVF is something I'd want to work with before making any comments but for me the issue won't be resolution but rather lag. Maybe by going with a lower resolution they could speed up the processing and get less lag?
Otherwise this is all win in my opinion!
I think there is an opportunity for some to create a FPS adapter to use on this camera so other lenses can be used, both on tech cameras and hand held. I think though, having a FPS in camera would be a much better option, and, not having one, will cause those on the fence to not buy. I think there will be many on the fence.
I feel the size of the market of pros who put together Frankenstein systems in greatly underestimated. Speaking from my field, I know many architectural shooters who use a Frankenstein system to some extent (even my system is very Frankensteinish), and I would bet those numbers would be in the majority of APs. I also know many pros who use outdated lenses to create that look.
The resolution of the EVF I kind of feel could be a good thing. The more resolute the EVF is, the harder it is to surprise noise (due to the sensor working at a higher ISOs). Dealing with noise in an EVF is very annoying, but we will have to wait.