True, but those interfaces are built by adults still stuck in the old paradigm. Kids have astonishing familiarity with tables and phones. The notion that interfaces need to be dumbed down because users are 'stupid' might be true today, but that won't be the case for those raised with smartphones.

2007 was 11 years ago, in 10 years those iPhone reared people will enter the workplace. They will have instincts you and I do not. I suspect it will push general computing interface design to the 'power user' side.