This post contains an example of combining embedded video from youtube with an embedded textivate exercise.
The video is a song about "Mes vacances" by Tom Poisson, which I've already blogged about on the TaskMagic blog: http://taskmagic.posterous.com/french-song-resources-mes-vacances
The activity shown below is the "Next Word" activity, which can be accessed via this button on the textivate menu screen:
