Oh great. Olympus probably bought a tonne of these sensors just to keep the prices down and we are definitely going to see the same sensor for the next 3 generations of M43 cameras and I'd lose interest in the system again.
Never mind that the sensor doesn't seem to be substantially better than the Ricoh GXR's 12MP APS-C sensor, with the noise profile extremely similar. Yes, the latter is an APS-C sensor, but you can figure that it took several years for the performance to catch up.
I'm not sure if the sensor is a smaller cut version of the 24MP Sony one. The M43 sensor is about half the area of a APS-C sensor if I recall.