Two of my kids have DS' and DS2 does play with them, but he can't really play it properly as the games just aren't designed for preschoolers. I think you can get a cookie monster and elmo game now, but that is still a pretty limited range. The only one he kinda can do is a crayola one we have and he does the colouring in. He is nearly 4. I'm thinking of a leapster for him as the choice of games is better and it is designed for preschoolers kwim? If we didn't already have Ds' in the house I wouldn't be keen on spending the money on one.