I spent the morning looking at the samples of IQ in dpreview (not having an OMD myself) and I compared the OMD, GX1, GH2 and the Canon 5DmkII (I also swapped in the E-P1 now and again so I could compare to something I actually have in hand). The IQ on the Olympus OMD is very nice. That said, I didn't find it spectacularly better than the GX1 and GH2 (or even G3). They all seemed to be remarkably similar with the OMD having noticeably less nice at higher ISO but at the expense of a bit of detail. In fact in some parts of the test image the OMD would shine and in others the Panasonic cameras would have a slight edge. That said, I'd be thrilled with any of them. Of course how that translates to real world photos is another thing entirely but I came away feeling like the current crop of 16mp m43 cameras area all quite good and a lot closer to the IQ of the 5DmkII than Canon owners might want to admit.