P.S The new, Serious and more business conscious Ken Rockwell appears to have changed the wording, the context, heck, everything in his review of this camera. It is no longer "less responsive than his kids toys", and not worse of all Nikon DSLRs ever made. It (the Canon EOS 5D Mark II) is now better than any Nikon at almost everything, and overall, one of the best cameras ever made. Go figure. Quote of his old review, and our comment at the bottom of this post.
No longer the stuff of rumors, here's the E-M5 straight from the horse's mouth:
So, let's see what we've got so far: