This is actually a nice innovation. I expect someone to come along and tell me there's an Android equivalent, since this is /. - but I have long wished my phone could function like a laptop - plug into a dock at work, into my home entertainment center at home... to be everything everywhere.
A real innovation to me would not be more functions in the device itself - we already have more than you can count - but rather *eliminating devices*.
Not just devices on my person like my watch or my keys or credit card, devices in my life - in my home, car, office, etc.