Zepto + Mustache + KnockoutJS starting point

gistfile1.js

ko.mustacheTemplateEngine = function () {

    this['getTemplateNode'] = function (template) {
        var templateNode = document.getElementById(template);
        if (templateNode == null)
            throw new Error("Cannot find template with ID=" + template);
        return templateNode;
    }
    
    this['renderTemplate'] = function (templateId, data, options) {
        options = options || {};
        
        console.log("DATA:");
        console.dir(data);
        
        var template = this['getTemplateNode'](templateId).text,
            html = Mustache.to_html(template, data),
            resultNodes = Zepto(html);
        
        return resultNodes;
    },

    this['isTemplateRewritten'] = function (templateId) {
        return this['getTemplateNode'](templateId).isRewritten === true;
    },

    this['rewriteTemplate'] = function (template, rewriterCallback) {
        var templateNode = this['getTemplateNode'](template);
        var rewritten = rewriterCallback(templateNode.text);     
        
        templateNode.text = rewritten;
        templateNode.isRewritten = true;
    },

    this['createJavaScriptEvaluatorBlock'] = function (script) {
      return "{{= " + script + "}}";
    },

    this.addTemplate = function (templateName, templateMarkup) {
        document.write("<script type='text/html' id='" + templateName + "'>" + templateMarkup + "</script>");
    }
    //ko.exportProperty(this, 'addTemplate', this.addTemplate);
    
};

ko.mustacheTemplateEngine.prototype = new ko.templateEngine();

// Use this one by default
ko.setTemplateEngine(new ko.mustacheTemplateEngine());

//ko.exportSymbol('ko.moustacheTemplateEngine', ko.moustacheTemplateEngine);