Yes, watching a movie on the Mediastation is a nice feature, but most people don't realize its not just a novelty. You can sync video to audio so you could have a live show with video playing at the same time. You could burn a custom DVD of scenes you want to play back along with your music specific to each song. For film composers, you can watch the movie or dailys as you write the score in sync with the picture... There's no need to have an external video playback unit while you are scoring for picture.
The Mediastation also allows you to hook several large monitors to the unit and do mirror imaging. One can be playing videos, the other displaying the MS touch screen. Very cool!
With each update the Mediastation is becoming a true monster workstation arranger. Lionstracs has been diligent in their software support, something to seriously consider when buying any keyboard. Keep up the good work Domenik!