I’ve switched to HTML5 YouTube Embed
Flash sucks and I want it to be easy for any iOS device to view videos on my blog.
The dimensions below are for 16:9 videos in this blog.
<iframe class=”youtube-player” type=”text/html” width=”500” height=”281” src=”http://www.youtube.com/embed/VIDEO_ID” frameborder=”0”>
</iframe>
YouTube API Blog Post: A New Way To Embed YouTube Videos
UPDATE: YouTube now supports HTML5 embed via the embed button on YouTube video pages.