handling backbone model/collection changes in react.js

Instead of manually binding event listeners, you can use a mixin based on this BackboneMixin to help automatically bind and unbind the listeners:

https://github.com/facebook/react/blob/1be9a9e/examples/todomvc-backbone/js/app.js#L148-L171

Then you simply write

var List = React.createClass({
    mixins: [BackboneMixin],

    getBackboneModels: function() {
        return [this.props.myCollection];
    },

    render: function(){
        var listItems = this.props.myCollection.map(function(item){
            return <li>{item.get("someAttr")}</li>;
        });
        return <ul>{listItems}</ul>;
    }
});

and the component will be rerendered when anything changes in the collection. You only need to put BackboneMixin on the top-level component — any descendants will be rerendered automatically at the same time.