I was going to try to just continue this via email, but I don't see your contact details. I don't have the industry background to know whether APS-C sensors ar

I was going to try to just continue this via email, but I don't see your contact details. I don't have the industry background to know whether APS-C sensors are indeed "commoditized" but that sounds a bit spurious. Canon, Fuji, and Nikon make the best digital camera sensors in the world today, and I have not seen a single camera produced by a major player that uses one of the other player's sensors. They'd be insane to sell that advantage as a commodity part. In that environment, it makes a lot of sense for Panasonic and Olympus to push the development of their own supply of sensors. As for whether there is nothing worthwhile in their smaller sensors, well, time will tell. Today, there is no MFT-competitor (Sony, Samsung) lens with Aperture below F2.8. That's pretty half-hearted competition.