Well - it's here.
Pretty much exactly as I would have expected: the ISO performance takes a small hit by the addition of PD pixels, the DR and colour depth are a touch better. It doesn't score fantastically overall (though it is the best MFT so far) and fails to catch up with the better NEX cameras, as one might expect. And it is, predictably, miles off the M240.
HOWEVER... of course it has IBIS and, in my experience so far, that means that it is often possible to keep shooting at lower ISO as the light drops than with much of the competition. Given that the colour depth and DR are only slightly (and in real world terms largely irrelevantly) worse than some of the cameras it competes with, one might reasonably argue that if the ISO performance is 'real world adjusted' as a result of the IBIS, it is worth a 78 rather than a 73. I also award it an extra five points on the basis that the forthcoming 12-40 F2.8 sounds like the only zoom on pretty much any system that is 'sharp enough' across the frame at all focal lengths to meet my needs. There's no point having amazing colour, DR and ISO performance if the lens is soft at the edges..,
Consequently, love DXO though I do, I hereby award the EM-1 a total of 83 points. But then I deduct two points because Olympus have no idea how to configure an Auto ISO system so as to allow shutter speeds to drop appropriately to focal length in order to keep ISO low - so I have to jump through some weird hoops to make it work as it should.
So that's an 81. Pretty nice!