[General Questions and Answers] Pennycake:
One problem I see is semantics. "Shut down all apps except for Google Maps" sounds good - but do you really mean ALL apps ? The line that would be walked is one where the developer must train the program to not necessarily do what they ask, but do what they WANT. It gets trickier when you realise that some people who aren't your average users might want to test things and shut down an app (in this case) that an average user would never want shut, where they might mess up their phone beyond their ability to repair if they did.

I think speech is a great tool to interact, though I'm not going to be a person to use it. I don't think speech will ever become a default unless there are other technological advances that change how we interact with the world. It's annoying enough to hear someone gabbing loudly to another human on the phone, do we really want people gabbing AT their phones as a default interface ? I think privacy is a driving factor that will keep sound from being a major interface - perhaps it could work for in home applications, but out in public people may not want to announce to the world who they are calling, what they are looking for, or what site they're logging on to, et cetera. Until there's technology to make voice and sound less "public", I don't see this being the future of phones - it's more of a nice thing to have as an "extra" for when a person is comfortable using it.

But, hey, maybe we'll get used to wearing Google Glass and talking to ourselves all the time - or we'll get in-ear buds or implants where we can choose to hear the outside world or not. Just exploring the possibilities here.

I do think it's a big "outrageous" to have infinite backup. Just take a look at how much data companies like Amazon and Facebook acquire on a per-day basis. Think about how much data you use on a daily basis. I don't have the money or desire to be buying new HDDs every other week. Maybe in the future there will be a technological revolution that allows for mass amounts of data to be stored in even smaller spaces. But current technology in that regard is still very expensive and persnickety - read about high capacity SD cards and how fragile they can be and about data needing to be "refreshed" or they can become corrupt. There are lots of issues that make backing up everything you do impracticable.

And, again - privacy concerns. Do I really want my computer to know what I did last Wednesday and who I was with ? What if someone stole my computer or phone and had access to that information ? If we had the technology to do that, who's to say that current encryption would be "enough" - or that someone wouldn't go ahead and try to hack it anyway if they felt finding out basically everything about you was worth brute-forcing your phone or whatever they'd do in the future ? And have no password or a crappy one - even easier for them to know EVERYTHING about you, now.

Highly visual and talk-activated computers are absolutely great for games, movies, and TV. Why ? They function as narrative devices. They allow the actor to say or explain things they otherwise wouldn't have said out loud for personal, practical, or security reasons. They can become characters in their own right. People like those big screen computer displays where the characters are poking things all over and up and down - it looks cool. But not so cool is having your arms get tired from reaching up and around all the time. Not so cool is having to tell the computer out loud what kind of special images you want to search for when you have house-mates living in the next room over. ;)

Just some thoughts. If you have other or counter ideas, go right on ahead. :)