Update: the Samsung NX1 is back in stock at B&H.
It has been a slow dead: the Samsung NX1 camera is finally listed as discontinued at B&H (both the kit and body only listings). We never saw any significant price drops or discounts on the NX1. Adorama and Amazon still have the NX1 in stock for almost full price.
There is a petition with 560 signatures to keep the NX line alive.
There are several NX hack projects currently going on - maybe this will be the future of the NX cameras. Check also this dpreview discussion on the latest NX500 hacking progress.