Takeoff on Burt Rutan's Boomerang (video)

Someone was lucky in Oshkosh and took this short video clip from inside the Boomerang while it was doing takeoff. I find it rather interesting, especially because I am interested how this kind of window layout works. Here is the clip from some lucky person who got as a passenger to the plane: http://www.youtube.com/watch?v=QD8Cz0Sw44Q&feature=related