Since everything in the browser is replaceable and implementable with JS/HTML/CSS then isn't Breach a layer above node-webkit? That is, everything can be changed, so you can write a Breach based app that has no regular browser component in it. I am trying to get a feel if Breach is perhaps more accessible way to do native app dev than node-webkit, which seems to require a lot of boilerplate that is necessary for basic apps.

I am a bit confused how Light Table and Atom can implement tabs if node-webkit is only one tab.