Regarding the EVF, I don't see any noticeable difference between the 6 and the 5N other than the 6 being internal. If anything, the view seems more open and less sensitive to eye position. Having had a 7, I don't think it was superior to the 6 in that regard.
As for the battery charging solution, this is a serious cheap out by Sony. So following their way of thinking, you can't use the camera while you're charging your battery? Hello? Did it dawn on them that some people might actually be doing some serious shooting where they'd have more than one battery so they could charge one while still shooting? So just add $20 to the price and give us a charger with the camera.
And then they make it worse by switching to a micro-USB connector. What brain trust thought that was a good idea? Probably the people that thought they could sell more cables by doing it. This and the battery charging solution are good examples where Sony outsmarts themselves. They come up with a good product then cripple it with some design aspect that either makes them look cheap or which is incompatible with the rest of the world. As a company, I do not like them even if the NEX cameras are good overall.
As for the Wi-Fi, I want to be able to turn it off. At the very least, it has to be a battery drain and if the RF in any way impacts the images, it needs to go away. I say this because the noise pattern in the NEX-6 images appears to be of a fine grain similar to the 5N but it appears to be denser. There is also some very slight banding that I don't see in the 5N. Exactly how much this affects real images is yet to be determined. It's entirely possible this is a difference between the individual imagers in question but I was hoping to see noise at least as good as the 5N if not better and so far, it's not better at the very least. I'm very interested to see formal reviews of this.