The decision to buy which one is difficult especially lately major manufacturer will produce their mirrorless camera makes buyers delaying their buying decisions. Especially if you have invested heavily on a certain brand.
I decided to get the E-P3 as it had many of the features I wanted, I'm used to the UI, and they are coming out with some nice lenses. I may still get the C3 just to give it a go and see how it's larger sensor performs. I will keep a close eye on Sony as I'm convinced they will tap into the Konica/Minolta heritage and produce the first true digital Hexar AF. That is a camera I'd snap up as soon as it's available.