just want to add that embedding hypedocs with dynamic heights within iFrame in wp-documents works fine using this technic: http://forums.tumult.com/t/possible-to-resize-hype-container-from-scene-to-scene/5833/4?u=h_classen
it can easily be change to be generic using a common nomenklatur:
hypedoc onscene-, onlayoutload (first scriptcall!)
var height = hypeDocument.getElementProperty(element, 'height'); //scene(layout)height
window.parent.postMessage(["hype_custompart", height], "*");//id of your iFrame within wp
wp:
window.addEventListener('message', function(e) {
var eventName = e.data[0];
if(eventName.indexOf('hype_') != -1){
var data = e.data[1];
var iframe = document.getElementById(eventName);
iframe.height = data + 'px';
}