Ipads and Kindergarten Students

This blogpost on http://creatinglifelonglearners.com/?p=876 asks the question, "Should kindergartners use ipads?"  Why not? Besides, they probably already are at home! I've found that I've had to explain how to use the ipods and laptops in my classroom less and less every year.  Most already know  how and those that don't quickly pick it up from the children who do. Why should children unplug when they come to school?