AI hardware?
Would that not basically be a processor of some sort? Perhaps the drivers could interact betwen the system and AI device on a level that the driver decides when intelligent behavior is appropriate.
Not really sure what you mean.
And upgrading every 3 months? hehe. That is likely.. Actually, a well designed device that delivers some sort of sentient AI should have the intelligence to improve upon itself, upgrading itself over as it ages.. Learning new things etc..
I personally like my computer to tell me yes or no instead of yes, no and "maybe". Scary thought.