Samsung NX10 Hands on Preview: 1. Introduction: Digital Photography Review (http://www.dpreview.com/previews/samsungnx10/)

Samsung NX10 Key Features

15.1 Megapixel APS-C CMOS sensor (presumed to be close relation to Pentax K7 sensor)
14.6 million effective pixels
New Samsung NX mount (25.5mm flange-back distance)
720P movie capture (H.264, 30 fps)
Contrast-detect autofocus
3.0" AMOLED screen (614,000 dots, PenTile RGB array)
921k dot Electronic Viewfinder
30mm F2 pancake and 18-55mm standard zoom options

I note there is also an adapter for Pentax K-mount lenses, so I am going to hazard a guess that the new Samsung mount is to K-mount as u4/3rds is to 4/3rds.

I already bought a Pentax K-x, but it will be interesting to see how the new camera performs, and at what price.