Selling Kin to a generation that's now used to the iPhone and Android is throwing money down a hole.
The iPhone and Android are all about information consumption. Check your e-mail, superior web browsing, news, weather, stocks, etc... Most of which, I'd assume, is of little value to a teen (even if they're in to celebrity gossip the Flash-less iPhone isn't going to do much for them)
Again, I'm not a teen. I don't know if the Kin appeals to them. But I can see how they'd have different values and how something that appeals to me (iPhone/Android) might not appeal to them.
Phone calls, tweets/twitpics, facebook posts, camera and movie capture, movie editing, audio recording, skype, video chat, geolocation capture, and augmented video are all examples of things people are using right now on these devices. None of them are consumption apps. They generate content.