Chris M. share's some images of his Cineroid EVF which I believe is the first EVF out on the market. We're still waiting for Zacuto and RedRock Micro to release their version. If you're that impatient type that needs an EVF now, there's a limited amount of these Cineroid things you can grab over at HotRodCameras.com, where you'll find more information about all the questions you might have.
so i guess the resolution is better than the camera lcd? it says you can't see the pixels through the magnifier which is a big cause mis-focused shots with my z-finder. i'm gonna wait for the zacuto version though, hope it's good.