Samsung NX...
Well. let me jump to conclusion. Let's see how wrong I was tomorrow
First, Samsung claims to want to become market leader for digital still cameras in 2012. This must include micro-APSC now. A market segment they say themselves will be 20% overall.
Second, it is exchangeable lens but they are still sorting out their options.
Third, the current prototype uses Canon EOS mount with the wrong register distance, or just a new mount inspired by Canon.
Fourth, they offer two adapters:
1. Canon (for sure)
2. K (legacy for existing customers, maybe -- maybe they allow Pentax to build one)
Fifth, because the register distance is smaller and it has 15MP, the prime lens in new mount will be 21mm.
Sixth, they don't give up DSLR but jump a model.
Seventh, as soon as their FF sensor gets ready they will be back in DSLR game
Eigth, whatever you like