I see a YouTube addition to the video option in TW7. This is a new one on me. I have attempted to test this by adding the supplied code from YouTube (both the standard movie link and also the iframe code). Neither of which I can get to work. I get the YouTube logo (bottom right) and signs of loading for about a second then nothing. I also see you can add a control bar.
That said, upon attempting to find out more information via the F1 Help on this video section I see completely different screen captures and little to no instruction on it's use. The screen captures show instead of YouTube, Online Video with options to autoplay and loop (with the latter options appearing only to be for .flv files).
Another one for Easypano to clear up!