node.js MVVM framework concept

Not sure how subjective this question is however I am looking for a peer review and general feedback on the intuitiveness and scaffolding potential of a framework concept. I have a gist on GitHub here: node.js MVVM framework concept

Is this more or less intuitive then using pseudo code and a template engine, such as handlebars, for rendering html?

The markup module will use three objects, the first being out design object:

var welcomeDesign = [{
  handle:'pageTitle'
  tag:'h1',
  attr:{
    class:'mainHeading'
  }
},{
  tag:'p',
  handle:'welcomeParagraph',
  content:[{
    content:'Welcome!',
    handle:'welcomeContent'
  },{
    tag:'img'
    handle:'welcomeBanner'
  }]
}];

The second object is our data:

var data = [{
  published:'11-8-13',
  title:'Hello World',
  content:'Welcome to...'
  assets:[{
    type:'img',
    path:'/images/'
    name:'cat.jpg'
  }]
}];

The third will be our mapping logic:

var imageAsset = {
    attr:{
      src:{
        key:'assets',
        map:function(obj, values){
          return values[0].path + values[0].name
        }
      }
    }
};

var welcome = {
  pageTitle:{
    content: {
      key:['published','title']
      map: function(object, values){
        return values[0] + ': ' + values[1];
      }
    }
  },
  welcomeContent:{
    content:{
      key:'content'
    }
  },
  welcomeBanner:imageAsset
};

and finally the methods for bringing them together:

var markup = require('markup'); //our module

var welcomeMessage = markup.design(welcomeDesign); //create a design instance

var homeWelcome = new welcomeMessage(data); //instantiate with our data
homeWelcome.render(welcome); //render with our logic