We got my daughter's ipod touch for her when she was 6. She's now 7 1/2 and it's been one of the best gifts I ever got her. There are SO many fun educational games she can play. It's a better investment than the other electronic gadgets aimed for kids b/c it can do just about everything she wants, and it grows with her. We have rules of course... it has to be checked out with permission, time is limited, not allowed ever on school days, you must be sitting when playing, and earbuds are not allowed (she can listen to music on the charger station speakers). She plays math games, problem solving games, stuff like that.... she loves it.
I say go for it!
~ working mom to 3 little girls ~
Roadie... 2010 54cm Trek Madone 4.5, Bontrager inForm