I'm thinking about a variety of routes just now but I consider a viewfinder a necessity and at least for doing portraiture stuff I'd like a viewfinder which gives an indication of where the focus point is (so the X10 with it's zero info optical vf isn't ideal), I wouldn't mind having to use an EVF but if I'm doing portraiture as mentioned above, I want to be able to stick a flash trigger in the hotshoe so that discounts the GF series, the Pen series and the GXR. The Nex7 has the EVF and once an adaptor is fitted, n available hotshoe for flash triggers etc but, native lens choice is shonky and the sensor has issues with wide angle legacy lenses.
Och I dunno if I'm really considering any of them! i should probably just keep my 5D/100mm and X100 combo and stop dreaming! Or maybe I should get over my viewfinder requirements and just get a gf1, and the Oly 12mm and 45mm.