newTube is a dirty little javascript-hack to easily embed html5-video from YouTube.
To use it, just include this script in your document like this: <script type="text/javascript" src="http://futtta.be/newTube/newTube.js"></script> and put a link to a youtube-videopage inside a div with id=newTube
If your browser is not capable of playing h264-video or if you are not enrolled in the YouTube beta, you'll just see the normal Flash-version.
More info on newTube on my blog.