Quote Originally Posted by Darrin View Post
What I'm asking is this: is the 20% miss chance of "not being there" the same effect as concealment, or is it a separate/different effect entirely?
It's the same 20% miss chance attackers have against you when they can see Ethereal creatures, which removes the concealment aspect of it (that you are effectively invisible to material creatures while Ethereal.) It's not concealment; you can aim perfectly well while Blinking, there's just a chance your target won't physically be in the space you are intending to strike when you make your attack.