I tried the Samsung NX100 and NX10.
A friend of mine works for Samsung and she let me try both cameras.
They both surprise me, to be honest.
they both perform well in both daylight and lowlight,
and in my personal opinion; image quality is comparable and noise control is way better than my 30D.,
But i think Samsung will do better when they have a better lens line up. So im quite excited to see when the new lenses come out this year.