Dpreview's got the skinny:
Samsung NX10 Hands on Preview: 1. Introduction: Digital Photography Review
First APS-C EVIL camera. 25.5mm flange distance, not 20 like µ4/3 (yipes--M-mount is
barely adaptable). But why did it have to be
Samsung? (Obvious answer: Pentax dumped their sensors and went with Sony ages ago. Only way they could break back into the camera biz...)