Its interesting that as this forum draws to a close that I stumble across this article:
Why The iPad Is a Learning Tool
http://www.learningsolutionsmag.com/articles/545/why-the-ipad-is-a-learning-tool
Summary
While the debate continues, there’s no doubt that the iPad has taken personal computing to the next level. Considering computing devices began with a vision of revolutionizing education, it’s not surprising that many of the iPad's features appeal to educational users.