FYI, I have been using the app Webout the last few weeks to stream both audio and video from my iPad running 4.2.1 to my Apple TV 2.0. I purchased it at .99, but I see it is free for the Christmas break. For some reason it hasn't gotten as good of reviews as I would have thought. Maybe the users just don't know how to use it. It's working great for me. For FREE! Why not check it out.