Attempt at knockout + winrt

knockout-observable-vector.js

(function(){
var 
  elementKey = '__ko_vectorObservableArray'; 
ko.bindingHandlers.vector = {
    init: function (element, valueAccessor, allBindingsAccessor, viewModel, bindingContext) {
        var winRTObservableVector = ko.utils.unwrapObservable(valueAccessor());
        element[elementKey] = ko.observableArray(winRTObservableVector);

        function wrappedValueAccessor() {
            return element[elementKey];
        }

        winRTObservableVector.addEventListener("vectorchanged", function () {
            element[elementKey].valueHasMutated();
        });

        return ko.bindingHandlers.foreach.init(element, wrappedValueAccessor, allBindingsAccessor, viewModel, bindingContext);
    },
    update: function(element, valueAccessor, allBindingsAccessor, viewModel, bindingContext){
     
     function wrappedValueAccessor() {
            return element[elementKey];
     }
     return ko.bindingHandlers.foreach.update(element, wrappedValueAccessor, allBindingsAccessor, viewModel, bindingContext);
    
    }
};

})()