gistfile1.js

var UserProfile = Backbone.Model.extend({
  url: '/user'
});

var UserProfileView = Backbone.View.extend({
  initialize: function() {
    _.bindAll(this, 'render');
  }
  ,render: function() {
    console.log(this.model, this.model.attributes, this.model.attributes.username, this.model.get('username'));
    return this;
  }
});

$(function() {
  var
    model = new UserProfile
    ,profile = new UserProfileViewi({
      model: model
    })
  ;

  model.fetch({success: profile.render});
});