I’ve had my Nintendo DS for a few years now.  I have been very impressed with the innovative touch screen technology,  which responds extremely well.  Some games do not really utilize it, but it adds a unique gameplay experience to the ones that do. While the graphics for the DS may not be as visually impressive as those of the Sony PSP, I still prefer the DS because of the better selection of games.  While many of the PSP games are basically remakes of PS2 games, the Nintendo DS has many original games which are not available on another system.  The sound isn't as great as the PSP (the...