Urghh, I had to install QuickTime just to view this movie. It's kind of silly in this day and age that you should need to install a third-party plugin in a web browser just to watch a video (and kind of ironic, since Myst and Riven required us to install QuickTime back in the day). Even though it's only a short loop, could the video be put up on YouTube?
For those who can't get it working or can't be bothered installing QuickTime: It's just a short loop of the Myst Island day/night cycle (not a trailer or anything). It's very pretty. I can't wait for this to come out.