I forsee a pretty standard problem that might arise from these units, as nice as they are.
It's called WYSIAYG.
What you see is *all* you get.
In short, if you dumb something down far enough, what you get is not a simpler thing, but a *different* thing. The learning you get from it, such as it is, does not translate to anything you'll need to replace it with once you outgrow it, so itonly postpones the need to learn how "normal" computers work, stranding those people in a computing ghetto.
Worse -- and this will make me sound somewhat elitist, but that's never bothered me before -- unless you choose to treat the Internet as a read only experience, learning how the *computer* works is not the most important part of your learning experience.
AOL dropping Usenet did *not* end the Eternal September, I'm afraid; let's not turn millions more people loose without the first clue about the 'net, shall we?