Aside from its obligatory antagonists, the world presented in it seemed more or less like a utopia. What I really wanted to come true from it was how every device – from doghouses to alarm clocks to ovens – had a standard interface that you could "jack in" to with the "Navi" (AI avatar) in your smartphone-like PET (Personal Terminal)..
In current world terms, ideally that would be like:
• Every electronic appliance will have an standardized wireless interface, with no physical controls other than maybe hard reset/power buttons.
• Whenever you get a new device you'd physically tap it with your phone/wearable to register it on your Apple/Google/Microsoft/other cloud account.
• You'd get different tiers of controls for each appliance based on your physical distance and the level of authentication on your primary phone/wearable. e.g. to unlock your front door you have to be standing right there (like how unlocking a MacBook with Apple Watch works) but you can turn the lights on/off from across the world if you've unlocked your phone and entered your cloud password – and only from that phone.
• Personal Assistants (I hope they get to be called Navis at some point) would be interchangeable and customizable – like ringtones and wallpapers – each with its own visual avatar and personality. You could even have multiple Navis, each with its own duties; a butler-like personality for controlling your home, and a chirpy R2D2-like robot that handles everything else.
We can see some of that happening with Apple's HomeKit and its integration with Siri, and of course their competitors' offerings.