> there's really just not much more a smartphone can, or really should do
Really? What about:
* haptic feedback as a 2d surface? http://senseg.com/ * replacing all the cards you carry in your wallet (NFC) * going a week on a charge * predictive modeling where your phone preloads webpages/directions/music that it thinks you're going to need
I suspect your comment will seem obviously wrong in five years.