Learn to read the other threads. CryEngine 3 is not out right now. No official date has been announced. Most people are expecting summertime, though that is not confirmed at all.
i heard there is one. there's video's on youtube of people (im assuming developers since its nout out yet... or its a leak) but i'd be majorly disappointed if there wasnt one... thats over half the fun of crytek games!
They did this with Crysis Warhead...its not ready yet. It will probably come out eventually like Warhead's editor did. Or maybe not. I'm Crytek knows it will be a huge mistake not to have it...