Olympus US has today confirmed that Olympus Optical Co. Ltd. (Japan) are indeed working on a "concept camera", that is be based around a 4/3" CCD, though they haven't confirmed the supplier (though it's plainly the Kodak KAF-C5100E). "Olympus plans to position the 4/3" CCD as a new industry standard, and expects this new image sensor to encourage competition and to expand the market for digital SLR cameras."