Still beating around the bush of Promises, a simple wrapper for `setTimeout(fn, 0)` (a technique used in DOM scripting to defer execution to the end of the stack) that returns `status` and `cancel` methods. When I thought a bit more about [later.js](https://gist.github.com/barneycarroll/5403872) I realised a bit of extension was almost natural. …

Later.js

function Later( fn ){
	// 0: pending; 1: resolved; 2: cancelled;
	var status  = 0;
	var resolve = setTimeout( function resolve(){
		fn();
		status = 1;
	}, 0);

	return {
		cancel : function cancel(){
			// Can't cancel an event that's already executed
			if( !status ){
				clearTimeout(deferral);
				status = 2;
			}
		},
		status : function getStatus(){
			return [ 'pending', 'resolved', 'cancelled' ][ status ];
		}
	};
}