Still looking for a PhantomJS-like tool in Go. Really hope that'll happen some day. Embedding a browser engine is not easy mind you, but one can dream.
I will try to play with it as soon as I can. I was wondering, I didn't find any method to render a given as a PNG or JPG, is it currently supported? This is our main use for PhantomJS as it is. And thanks again for the hard work.