It's the Kaltura player:<p><a href="http://www.html5video.org/kaltura-html5/" rel="nofollow">http://www.html5video.org/kaltura-html5/</a><p>I'm not sure what part Adobe played - all of the code is Kaltura's, and the widget itself refers to their site. I think the "released" action is that they added it to their Widget Browser. Woot.<p>It's not clear, but the the Widget Browser is a separate AIR app - it's not built-in or part of Dreamweaver. Also, the video the author suggests to watch actually takes you to a teaser; you have to have an account to view it.