squirrel$$$bandit
Veteran
The Samsung looks interesting. I like the idea of APS-C. However, using wide M lenses will probably be even more of a challenge than it is on the G1 -- minor edge smearing could become mid-frame smearing. No articulating LCD (one of my favorite G1 features.) Cine lenses are out with the larger sensor.
The supplied G1 raw converter does corrections, but other converters do not.
Not even ACR? Back when the LX3 came out, Panasonic had to really twist Adobe's arm to make them apply corrections to the LX3 RAW conversion...I just gave up and use jpegs.