Kids tend to take to tablets brilliantly in my experience. My son turned two a couple of months ago and he can unlock my iPad, swipe across to the next page, select his folder containing his apps (mostly educational, one or two fun apps) choose an app, play with it for a bit, close the app and open a new one. He recently learned how to work the camera which is pretty awesome.
Interesting side effect: He now thinks all smooth surfaces are interactive. We were on the train recently and he was swiping the window in order to close the train doors. Blew my mind at the time.
I remember playing video games with a younger family member before he could read. (I want to say the system in question was a Sega Saturn, but I'm not one hundred percent sure about this.) He didn't know what the menus said, but he knew exactly which options he wanted and how to move through several menu screens.
I was impressed.
Moral of the story: A halfway decent interactive interface can work wonders for a kid's ability to unleash his mind.
My son (and daughter) now walk up to the TV if I have paused the movie and press the big (||) button on screen. That blew me away too - its much better interface.
(Actually they both used to, now they grab the remote. Ollie can work it fine now.)
Interesting side effect: He now thinks all smooth surfaces are interactive. We were on the train recently and he was swiping the window in order to close the train doors. Blew my mind at the time.