If you are an owner of an HTC EVO 4G, it's possible that one the contributing factors to your buying the popular smartphone may have been the HDMI output feature. After hearing that it can produce said capabilities, maybe your mind began dreaming up all kinds of situations where showing your phone's display on a TV in HD resolution could be very handy. If so, then chances are you were a little bit deflated as you saw the fine print that only Gallery and YouTube apps would work with this handy feature (is that a yawn I hear?).