I understand what you're saying, but the key is enabling. This device enables some things at the cost to many others.
Mind you, I'm not saying it won't be cool, and I'm not saying it won't sell many units, (although I have my doubts). I'm just saying this isn't the logical conclusion to the personal computer revolution. A personal computer is, by definition, a general purpose computing device, which this most assuredly is not.
Edit, reply to following comment: How is "it does what I tell it" a narrower definition of enable than "it does what it's allowed to do by the people I bought it from"?
I'm not trying to be flip; I think it looks very sexy. However, it's just a narrow tool, not the end-all of computers.
Only if you accept your very limited definition of enabling. You mean so that you can program it. I'm guessing most other people think it means so it can do loads of cool stuff without me having to speak in 1s and 0s.