These are all rumors for now. Not facts. Just things that I've been hearing down the grapevine. Could be right, could be wrong. *shrugs*
1) This article about NX's detachable controllers supporting force feedback and motion controls has truth.
https://t.co/4ChXVvqLWd
2) NX prototype had a 6.2 inch 720p multi-touch touchscreen. Unknown if final product's screen size will be larger / smaller than prototype.
3) Prototype for dock station has USB ports. I heard 2 usb ports, but I don't know if this number will change in the final product.
4) MCV's report about GameFreak being involved with NX has some truth to it.
From Emily on twitter.
She posted first:
Should I post things that I've heard on NX? Or will people just get pissed with me?