Great observation on the dSLR...I have a Canon EOS 6D and a range of lenses....the S7 is giving it a run for its money on picture quality and exposure control....and especially on convenience.
I just got the Samsung official case and lenses - wide-angle and telephoto - shipped in from Korea - they look great, results-wise so far.
This Galaxy S7 case from Samsung offers swappable camera lenses | Android Central
Anyone else tried them yet? They're quite expensive, but well-built, and feel like quality. I haven't taken many pictures with them as yet, but the little cylinder they travel in fits well in a pocket,and I carry them everywhere now. This is just the beginning - imagine if they build lenses with manual zoom and more focal lengths next...