The draw of portable gaming is simple – life doesn’t always make it easy to be tied down to a TV (or your computer) for a full-on gaming experience. Sometimes, you get stuck in the car for four hours and need to play a little Pokemon to relax. Mobile gaming makes it even easier with no lack of quality time-fillers that are already in your pocket.
For many situations, portable gaming means a need either for headphones or for an experience without sound at all. It would, after all, be irritating if everybody in the line at Subway was playing Angry Birds with the sound cranked up on their phone. So most respectful people (that don’t have headphones handy) will switch their phone to silent mode. The problem comes in when disrespectful games choose to ignore this, and play sounds anyway. Like Madden 11 HD for iPad.