It seems that Apple have been aiming for this point in history since the late eighties, when John Sculley was in charge and Steve Jobs was busy with the NeXT Computer brand! This vision has been laid out in a video from the time and clearly, there are some interesting and familiar features in the Apple Knowledge Navigator.
The video shows an avatar guiding the user through his dairy and acting on the user’s commands, there is face to face communications and the device itself is similar to a tablet device. However, Steve Jobs had been away from Apple for three years, did he leave a notebook behind or are these visions from the new Apple. Of course, it took the return of Jobs to make Apple into the business it is and allowed the company produce such innovative equipment.