Samsung announced the NX1100 compact interchangeable-lens digital camera, a seemingly identical replacement to the NX1000. From what I can tell, the big difference is that a version of Adobe Lightroom software is (apparently) packaged with the new model.
Most of these NX cameras share the same sensor. The other internal differences are minor. So now you can buy (or will soon be able to buy) the NX20, NX200, NX210, NX300, NX1000 and NX1100, all with the same 20 megapixel APS-C sized sensor. That's a lot of different versions of essentially the same camera!
These Samsung NX cameras are pretty good, but they're all "daylight" cameras, performing much better in normal lighting than in low light.